Who were the Stoics, what did they believe about the world, and how can we apply it to life today?

References:

Marcus Aurelius - https://plato.stanford.edu/entries/marcus-aurelius/

Hunter-gatherers and happiness - https://www.npr.org/sections/goatsandsoda/2017/10/01/551018759/are-hunter-gatherers-the-happiest-humans-to-inhabit-earth

Dzogchen - https://en.wikipedia.org/wiki/Dzogchen 

Music by Trevor Villwock