The sangat (congregation) is about unification. Our unification with God. We need a sangat as our fixed attitudes and beliefs no longer serve a purpose. These create frustrations as there is no progress.
Sangat helps to create an expectation and makes a contribution. Sangat is about engaging and disengaging with people just like the process of meditation. The duration and the intensity of the engagement allow the inner doors to open and we gain access to information through experiences which were not available to us previously.