In The Legend of Zelda: Tears of the Kingdom, the Ekochiu Shrine can be found northwest of Pico Pond, which is between Central Hyrule and Eldin.
Enter the shrine to begin the Rise and Fall challenge. Step on the platform to launch the concrete block. When it comes back, stand on the block then cast Rewind to cross the gap.
In the next room, climb up on the cube that drops into the water and cast rewind before it goes over the waterfall to reach the upper ledge. From there, turn around and look back towards the water to find a chest. Glide down to it and open it to receive a Zonaite Shield.
Again, jump on a cube then cast Rewind on it to reach the upper ledge.
For the next puzzle, you’ll need to jump down to the lower level on the right to find a metal cube. Bring this cube to the platform closest to the altar using Ultrahand.
Climb up the ladder then stand on the platform. This will cause the cube to shoot up. Make your way on top of this metal cube then use Rewind to launch up into the air where you will then be able to glide to the altar. Interact with it to receive a Light of Blessing.