The human brain, is responsible for our consciousness. Us being self aware is attributed to a series of electrical impulses. When the brain dies, so does consciousness. This means there is no such thing as a soul, no afterlife. We only have one chance at life, and the greatest sin of all is wasting that life. Religion holds you back from achieving the most that you can by forcing you to dismiss logic as obsolete. The only thing that's worse than this, is indoctrinating children into this ideology, because most of them do not currently possess the cognitive ability to question whatever they're being told by their infallible parents. (Mother is God in the eyes of a child)
I'm in my second semester at Umass lowell (second year in college).