Marcus closes his Book I, fittingly, by thanking the Gods. Stoic theology is a strange critter for the modern westerner, steeped in fifteen hundred years of Abrahamic context. For many new Stoics, shaking their relationship is the hardest part of reading the Stoics. Immediately they begin spinning up ideas of omnipotent, omnipresent, omniscient personality.
Marcus’ gratitude shows not to be the case. He simply looks at his life, and is thankful that a Providential cosmos has placed him there, and then, and in the manner which was most conducive to his development. He maintains a proper understanding of the scale of self compared with that cosmos, and as is fitting, is thankful. This perspective is piety.
It’s just and proper, then, that Marcus ends this section with a straight forward thanking of the Gods; a useful reminder for all of us. If this topic interests you, I’d readily point you to Chris, at TraditionalStoicism.com for more.