After Link gets the Silver Gauntlets as a child, he explore the rest of the Spirit Temple as an adult.
Get the Compass
From the first room of the dungeon, go up the stairs and turn right. Now that you have the Silver Gauntlets, you can push the large block. Push it until it falls into a gap up ahead.
There is a Razor Trap and Beamos up ahead. Bomb the Beamos, then use the Longshot on the crystal switch on the ceiling. Go through the door on the left.
Kill the Wolfos, then stand on the Triforce symbol and play Zelda's Lullaby to make a chest appear. Use the Longshot on the chest to reach it, then open it to get the compass. Then leave the room.
Get a Gold Skulltula
Now go through the door on the right. Use the Hover Boots to collect the first silver rupee (or just jump to it), then look for the other silver rupees hidden in alcoves in the walls. Play the Song of Time to remove the blue block and collect the Gold Skulltula behind it. Play the Song of Time again to move the blue block back to where it was, giving you access to another silver rupee. After you collect all five silver rupees, go through the door that opens.
Get a Key
Be careful of the Like Like that drops from the ceiling. After you kill it, open the chest to get a small key.
Get a Second Key
Leave the room, then go through the rolling boulder room to return to the room with the Razor Trap and Beamos. Go through the locked door.
Shield yourself from the flying pots in this room, and beware of another Like Like that drops from the ceiling. Afterward, go to the end of the hallway and climb up the brick wall to reach the next room.
Use the Lens of Truth to see the invisible Floormaster. Kill it, then kill the three small hands that pop out. Din's Fire can quickly kill all three, or you can try a spin attack, or just run after them without targeting them. Grab a handle on the mirror and rotate it clockwise, but stop rotating it when the door opens. If you push it farther, the last sun switch releases a Wallmaster. The first chest that falls (across from the door) contains a recovery heart, and the second chest (in the corner) contains a trap that will freeze you. Go through the door that opened.
This is the room where you got the map seven years ago. Don't touch the nearby Armos statue or it will come to life and attack. Go up the stairs in front of you. At the top, use the Hover Boots to float onto the statue's hand. Play Zelda's Lullaby there. A chest will fall into the other hand. Use the Longshot on it to get a small key.
Get a Second Gold Skulltula
Next, use the Longshot on the torch on the nearby ledge. Turn around and play Scarecrow's Song to make Pierre appear near the far wall. Use the Longshot on the scarecrow to reach the Gold Skulltula on the far wall, but watch out for a flying pot that might try to hit you when you reach that ledge.
Create a Shortcut
Now fall down to the lower level. Go to the other side of the room and use the Longshot target on the ceiling above the Armos. Go up to the top of the stairs. Use the Longshot on a small chest in the corner (it contains five rupees), then use the Megaton Hammer on the rusted switch behind it. This will open the bars on the door in the middle of the lower area. Go through that door.
Push the block forward until it falls, then push the next block until it falls. One of the pots contains a fairy. Then use the Megaton Hammer on the rusted switch to create an elevator. It will go down to the first room of the temple, giving you a shortcut.
Go back to the room with the big statue.
Go to the Miniboss
Use the Longshot on the target above the Armos, then go up to the top of the stairs and go through the locked door there.
Throw a bomb at the Beamos, then break the pot to get some bombs. Then go through the door at the end.
Carefully throw a bomb at the Beamos. You can use Din's Fire or Fire Arrows to kill the Anubis, or you can step on the switch to temporarily turn on a fire, then walk around the room to make the Anubis mirror your movements and move into the flames. You will need to play the Song of Time where Navi turns green so you can walk onto the time block to lure one of the Anubis into the fire. After the Anubis and Beamos are dead, go through the door that opened.
You have to wake up an Armos and make it hop onto the switch, then quickly go through the south door (NOT the one near the sun switch) so you can go through before the Armos jumps off of the switch. Stand near that south door and wake up the far right Armos, and with luck it will jump onto the switch. You can try to use the Longshot on it to freeze it when it's on the switch. Go through the south door when it opens.
In this stairway, there are two invisible chests that you can reveal with the Lens of Truth. Both chests contain a recovery heart. When you are ready, to battle the miniboss, go through the door at the top of the stairs.
Hit Iron Knuckle with an arrow or another weapon to wake it up. The strategy is the same as before: make it swing its axe, then do a side jump or backflip to avoid the axe. If the axe gets stuck in the ground, hit Iron Knuckle while the axe is stuck. The battle should be shorter because the Master Sword will damage it more than the Kokiri Sword did, and Biggoron's Sword (if you have it) does even more damage. After you have done some damage, a piece of Iron Knuckle's armor comes off and it can move more quickly.
Get the Mirror Shield
Go through the door behind where Iron Knuckle's throne is (or was) and go outside from there. Open the big chest to get the Mirror Shield. It reflects light, and can even deflect Beamos beams.
Get a Third Key
Go back to the room with the four Armos statues standing around a blue switch. Go past the Razor Trap and stand in the sunlight, then hold R to raise your shield. You can use the control stick to change the angle of the shield. Reflect the light onto the sun switch next to the door. The door opens, so go through.
Open the chest to get a small key.
Get the Boss Key
Go back to the Armos room, then go through the door to the right. Then go through the locked door straight ahead.
Kill the two Beamos, then use the Longshot on the skulltula on the moving part of the wall. There is no need to climb the wall, because you can just use the Longshot on the highest part and climb the rest of the way up.
Kill the two Beamos above the climbing wall, then go through the door.
Walk up the stairs and stand on the Triforce Symbol, then play Zelda's Lullaby to open the door. Go through.
Kill the Torch Slugs, then use the Megaton Hammer on the fake door in the northwest corner to reveal an eye switch. Shoot it with an arrow. Then use the Longshot to land on the platform that just appeared, and jump from there to the switch on the upper platform. The flames will disappear, so go down below and open the big chest to get the Boss Key. Then leave the room the way you came in.
Reach the Second Miniboss
Turn right and go up the stairs, and go through the door at the top.
Raise your shield to block the pots that fly at you. Then, in the N64 version, use a spin attack or Biggoron's Sword to hit the switch behind the bars. In the 3DS version, go down to the lower area and hit the crystal switch there. Go through the door that opens.
Kill the Lizalfos that drops down from above. There is a sun switch above the archway. You can use the Mirror Shield to shine light on the sun switch (stand in the light, hold R, and move the control stick) to make a chest appear. It contains bombs. Go to the next part of the room and kill the White Bubbles, then look for a rock sticking out of the wall or a cracked wall. Bomb it, then rotate the mirror to shine through the hole that opened. Go to the next mirror and kill the Lizalfos there, then rotate this mirror to shine through the bars. Go back to the room with the giant mirror on the wall.
Shield yourself from the flying pots again, then jump down onto the platform that is held up with chains, shield yourself from more flying pots if necessary, and shine the light on the sun switch on the nearby wall. The platform will go down to the giant statue room.
Shine the light on the statue's face. It will crumble and disappear. Use the Longshot on the door beyond the face. It will open when you reach it. Go through the boss door and watch the cut scene.
Iron Knuckle, part 2
Kill the Iron Knuckle the same way you did before. Watch the cut scene. Then go through the door behind the throne, go through the door at the end of the hallway, and climb up onto the central platform or use the Longshot to get there, and go toward the center of it.
In the first phase of battle, move around on the central platform to try to keep both of the witches in view at once. When you see a witch charging up a magic beam, stand still and hold R to raise your shield. You need to hit the witch of the other color with the magic beam. So if you deflect ice magic, try to hit the fire witch with it, and if you deflect fire magic, try to hit the ice witch with it. If you don't target either witch, you can move the control stick to change the angle of your shield, which might make it easier to aim at the witch of the opposite color. Be sure not to aim at the floor or the magic will spread out on the floor and you won't be able to hit the other witch with it.
Repeat this process until Twinrova transforms.
Use the Mirror Shield to block the magic like before. But this time, you have to absorb three blasts of the same magic in a row. You will get hurt if your shield has absorbed fire and you try to absorb ice, and you will get hurt if your shield has absorbed ice and you try to absorb fire. She raises the type of scepter that she is about to shoot from. So be sure to sidestep the wrong kind of magic, and stay in a corner of the platform so you can run out of the way of it, because it spreads out on the floor and will hurt you if you step on it.
After you absorb three of the same type of magic, stop targeting Twinrova. Your shield will shoot a beam of magic. Hold R and use the control stick to aim it at Twinrova. When you hit her, she will fall onto one of the four pillars. Run over to her (the Longshot is too slow) then hit her with your sword until she gets back up again. Then go back to the central platform and repeat the process until she dies. If you are having trouble reaching her in time, stand closer to her when she is shooting the beams of magic. Try to stand in a corner of the platform so you can more easily sidestep the wrong kind of magic.
After Twinrova is gone, collect the heart container on one of the small platforms, and step into the light.
After the cut scene, if this was the last Medallion that you collected, Rauru will tell you to go to the Temple of Time.