Religions (I happen to be a Christian) have answers to this. For most of them, physical or economic progress is not the answer, at least not the main answer.

Religions (I happen to be a Christian) have answers to this. For most of them, physical or economic progress is not the answer, at least not the main answer. That said, all but the most religious people have a mix in their head (and I include myself in this) between what their religion says and what the culture around them says; and that mix usually destroys, in whole or in part, whatever sense of peace or fulfillment the religion could supply.