Indigenous Religions Discussion

In an article titled http://www.michaelshermer.com/2004/09/mustangs-monists-and-meaning/
Michael Shermer argues that the reason people have developed an idea of the "Soul" and an idea of separate "spiritual" and "physical" worlds is because our minds are incapable of self-perception. Basically our brains NEED an idea of an external soul in order to operate. This need has led us to create an elaborate framework of "spiritual" beliefs, including all associated religious views. After reading this article and consulting other sources on the subject, provide a post that illustrates your thoughts on the subject. You should consider the following: Could our need to believe in a separate "soul" simply be a psychological phenomenon? Can science explain the "need" for religious concepts?