Form Constants
These are some examples of the form constants recognized by Kluever. These are patterns repeatedly seen by most people experiencing psychedelic substances. (Pictures from: Siegal and West, 1975)

Jacques Kaszemacher Untitled (1965): Geometric and kaleidoscope forms.

Dave Sheridan: Kaleidoscope form reported during a psychedelic imagery session.

Dave Sheridan No.1 Mothers Oats: Spiral form and detail.

Dave Sheridan: Pulsating, spiral-tunnel imagery constant.