Welcome to A To Z On Mindfulness For Newbies The fifteenth letter to be explored in A To Z on Mindfulness For Newbies is O. O is for Om Chanting. Om, pronounced “Aum,” represents the threefold division of time (waking state, dreaming state, and deep sleep). It is the sound of creation, the first sound of the universe representing all that is in creation. Om also represents God, Source, or Universal Consciousness. It also depicts the past, the present, and the future….