In a word "Sharing".  In a sentence "The sharing of Spiritual knowledge and experience.  In a paragraph:  The sharing of Spiritual knowledge and experience.
In the sharing it does many things.  It shows the generosity of the personality,
In the sharing, we are giving freely of Self.  In the giving of Self we are sharing Mind, Body and Spirit.  In the sharing, showing Caring and Love.  In the sharing, we may alleviate the pain in others.  In the sharing, we also help quench their thirst for knowledge.  In the sharing of experience, we hope to alleviate doubt in the hearts and minds of others.  Within our reach there are people just as confused as we are.  We can perhaps alleviate their uncertainty and confusion.  Bring to the fore the knowledge that no one is ever alone.  And by the sharing of our experience, we can give and learn along the way.  In doing so, hopefully, bring companionship and peace to others.  The peace that is brought about by the absolute knowledge....   That we Belong.