View of grass turf floor and blue yarn ceiling fixture.
The ceiling fixture creates the exact same sphere-cap shape, inverted. (If either sphere continued, they would each be 1 mile in diameter).

View of turf floor and 36' diameter hill. Hill raises to 2' at center.

Sphere-cap hill showing special one-step-at-a-time staircase incised into the surface.

Closeup of stair case. Each step accommodates one foot only. The stairs raise and lower incrementally over 18' span to 2' height at center. Participant must concentrate to coordinate movement up and down staircase.

Stairs are inset just below the surface of hill.

If a viewer is watching a participant ascend or descend the stairs, because the participant is raising up the hill so slowly - the stairs are so shalllow and their feet are hidden below the surface of the sphere-cap - the participant will look to be almost floating to the top and then bottom of the form .

The circular aluminum frame is mounted to the ceiling. Strung from end to end of the frame are lengths of blue chenille yarn, each length hanging side by side the next, each beginning and ending at the circular frame. Together, the separate lengths give the illusion of the surface of a sphere-cap. It is an exact replica, and inversion, of the turf sphere-cap on the floor.

Sample of chenille yarn side by side. Note the thick yarn width.

When a participant gets to the top of the grassy sphere-cap, they simultaneously get to the bottom of the blue sphere-cap. The participant's head parts the chenille yarn and is enveloped within the bottom of the blue sphere.

When the participant is at the top of the hill with her head within the bottom of the blue form, her view will be a landscape-like vista of blue expanse, for a far as the eye can see. Her body will be invisible to herself.

Anyone watching someone move to the top of the hill will see a headless person at the top: a literal mind/body disconnection.