Mayachin Shrine is found in Hyrule Field, northeast of the Hyrule Field Skyview Tower.
Shrine Location
Mayachin Shrine is northeast of Hyrule Field Skyview Tower, at -0705, -0869, 0031.
A Fixed Device
Jump onto the spinning metal platform, then jump off at the other side.
Step on the floor switch to rotate a stone slab, revealing a glowing target. If you hit the tall switch, an object rotates. Hit the switch again to rotate it back. Then go to the object that rotated, and look for the stone cylinders nearby. Take one of the stakes, and attach one of the cylinders to the flat end of the stake. Then push the stake into the object that rotated, so that when it rotates, the stone cylinder will hit the rolling orb.
Then go back to the glowing switch and hit it when the rolling orb is on the second-to-last white mark in the ground. If done correctly, the stake will hit the orb, which will roll up the ramp and hit the glowing target.
The path to the end of the shrine will open, but another glowing target will also be revealed. There is a stone slab on chains that is blocking the path to this glowing target. You can lift this slab out of the way by putting a stake in the stone that the chains are hanging from, then lift the slab at an angle and attach it to the stake. The stake should be pointing down at an angle, and you should attach the slab at the same angle, to prevent the slab from detaching from the stake.
Then go back to the glowing switch and hit it when the rolling orb has almost fallen off of the edge of the platform. If you hit the glowing target, the bars to the other room will open, and you can go in and open the chest to get an Energizing Elixir.
Then go through the other door that opened earlier, and check on the dragon ring to get a Light of Blessing and complete the shrine.