I recognised many patterns described by Rick Rubin in his book The Creative Act: A Way Of Being. There are Seeds, often lying dormant, Experimentation, selective exposure to others, change of context, and even the precise Impro prompt "Yes, and..."

I highly recommend TCA, and not just for artists. The clue is in the subtitle. Change his term "the work" to become "your life" and you have a good recipe for a rich mindful journey through the world.