The key part of this passage begins with "content with a life ..." Here, Marcus writes about what is important in life.
First, we should be just with other humans.
Second, we should revere the Gods and accept what they have sent our way (amor fati).
Third, we don't condemn vice wholesale, but understand that men engage in vice out of ignorance; and at the same time, we can accept that men can strive to live a life of virtues.
Fourth, and closely related to revering the Gods, we don't think that what the Gods or God has sent to us is "misplaced" nor is it a "crushing burden to endure" (meaning we don't complain about our lot in life).
Fifth, and lastly, we don't give into pleasure and passions of the flesh.
(see also Citadel p. 268)