In the Bhagavad Gita, there is no long discussion, nothing elaborate. The main reason for this is that everything stated in the Gita is meant to be tested in the life of every man; it is intended to be verified in practice. ↗
My horizon on humanity is enlarged by reading the writers of poems, seeing a painting, listening to some music, some opera, which has nothing at all to do with a volatile human condition or struggle or whatever. It enriches me as a human being. ↗