“The Veil” is a light artwork by Marie-Anne Kyriakou presented at GLOW Eindhoven 2009 in Eindhoven, Netherlands.
The visitor is given a device to wear on their head that records activity in various brain regions. The artist then provides a short instruction, and the visitor practices for a few minutes. Finally, using only attention and concentration, the visitor attempts to change the color of a spherical lamp.
Programme information from GLOW Eindhoven. Short excerpt quoted for reference; see the original page for full text, images and credits.