Phi-based geometric shapes produce interesting mandala designs.
A mandala is a geometric design, often symbolic of the universe and used in Eastern religions as an aid to meditation.
Phi-based geometric shapes can be used to create some interesting phi mandalas, embodying the phi proportion found throughout creation and iterating into the infinitely large and the infinitely small, much as the universe itself.
Phi Corbett contributed the mandala design below (inspired by Bruce Rawles’ Sacred Geometry Page) which uses the pentagram, also based on phi, to collapse into an infinite series of smaller pentagrams. (Download PDF version)