In this message, Paul Durbin discusses the concept of being 'on belay' in the context of rock climbing, and applies it to the idea of being attentive to helping people draw near to God. He emphasizes the importance of being on mission, using the acrostic 'YOU' to represent saying 'yes' to the mission, ‘owning’ the responsibility, and ‘understanding’ the cost. The sermon challenges listeners to embrace the responsibility of being on mission and engage in habits that help to fulfill this mission.