allot of people who died came back with descriptions of feelings ..about whatever..even feelings of regret mostly.
biologily maybe the body is something that amplify s these feelings from out in the either ..just like a radio is made to amplify a signal,
they say God is Love..so I figure that in of itself is an emotion right? and our image is built in representation to that, so feelings ..is everything. ether you feel guilt or glorified by hurting someone else could tell allot about your state of spirituality or basically if people think its all biological in nature then why bother worshiping a God..just take a pill