Impermanence is a subset of the evolution spiral. Everything evolves: mind, thoughts, stars, galaxies, art works, creations, living beings.
Evolutionary because, although periods cycle, the manifestation in each cycle is different.
recurrent evolutionary periods: growth > maturity > decline >
decomposition > repose > aggregation
transition milestones: death: decline > decomposition birth/creation: aggregation > growth impermanence: growth > maturity > decline