involution
Under involution is understood
- a self-inverse mapping in mathematics, see involution (mathematics)
- in medicine and biology the spontaneous regression of organs, see involution (medicine)
- in political science the "regression of democratic states, parties, theories into pre- or anti-democratic forms" ( Johannes Agnoli )
- In developmental biology, the migration of a cell layer inward, whereby it slides over an outer cell layer
- In the religion and mysticism of "Eternal Philosophy" ( Philosophia perennis ), the process of descent (folding in) that precedes evolution and leads from the divine universal spirit through thinking and feelings to inanimate matter ( Sri Aurobindo , Ken Wilber , Theosophy )