Learn the Song of Storms and drain the village well
As adult Link, show your ocarina to the musician in Kakariko’s windmill to learn the Song of Storms (L, R, X, L, R, X). After the Forest Temple, return the Master Sword to its pedestal in the Temple of Time. Play the song in the windmill as child Link to drain the village well.
Find the route to Dead Hand at the Bottom of the Well
Climb down, crawl through the low passage and defeat the Skulltula beyond the door. Walk through the false wall by the inscription. Follow the outer corridor to the Triforce at the north end and play Zelda’s Lullaby. Return to the drained pool by the entrance to the main room and crawl through its opening. Pass the next Skulltula and take the door into the room with the collapsing floor.
Defeat Dead Hand and collect the Lenses of Truth
Drop down to Dead Hand. Bait it by approaching a hand, then strike its head with the sword when it lowers it. Open the large chest for the goggles. The Lenses of Truth reveal fake walls, invisible platforms and hidden enemies. Wearing them drains magic.