It is important to distinguish religion from spirituality since while they may overlap it's entirely possible to be spiritual without being religious and vice versa.
Spirituality is a commitment to a life of depth and compassion that connects each of us to a larger whole. It is predicated on the development of a contemplative life in the classic sense of contemplation: an open and curious examination of experience as it unfolds, moment by moment. This is also called Presence, and it is the basis of an awakened life based on guidance from the Source, in service to the highest good.
Our personal spiritual development must ultimately serve others for it to be an authentic unfolding of the heart of spirit in action.