This document is a summary of a presentation by Dr. Peter Hammond on how to know there is a God. It argues that there is a God-shaped vacuum in humans that can only be filled by the eternal Creator. It provides examples from science like the complexity of the eye and astronomy that point to intelligent design. It also argues that rejecting God leaves life without meaning and exposes one to darkness of heart. The conclusion is that God reveals himself through creation and in Jesus Christ despite being rejected by some.