First you must decide what
sat-sangha is. It means association with sat
or reality. One who knows or has realized sat
is also regarded as sat.
Such association with sat or with one who knows sat
is absolutely necessary for all. Sankara has said that in all the three worlds
there is no boat like sat-sangha to carry one safely across the ocean of births
and deaths.
Sat-sangha means sangha [association] with sat. Sat
is only the Self. Since the Self is not now understood to be sat, the company of the sage who has
thus understood is sought. That is satsanga. Introversion results. Then sat is revealed.
Sri Ramana Maharshi