Physical and Mental Harmony

Permanent harmony. I know that there are those that claim we need opposites in order to know something. Discord to understand harmony, ever-expanding, for example. Isn’t this the tree of the knowledge of good and evil that took us out of Eden? Instead, we have the ever-expanding awareness of harmony, or happiness, or joy…no need for the opposite in this scenario. No need for good and evil. Only good, all the time.