This document discusses the fundamentals of Christianity and the role of the Holy Spirit. It provides biblical references about the foundations of faith and quotes from the Athanasian Creed describing the Holy Spirit. The document explores why the Holy Spirit is sometimes avoided or taken for granted, noting we fear what we don't understand. It describes the Holy Spirit as having a personality and roles like interceding and searching. In closing, it notes the Holy Spirit is a guarantee of our salvation and inheritance until we receive possession of it.