Doing Naam Simran whilst sitting in the Sat Sangat of a Puran Sant our Simran is counted in the Dargah.  So when we are sitting in the Sat Sangat of a Puran Sant then in addition to listening to His divine words, because those words are for us as well to follow, we should also concentrate on Naam Simran and realize the benefit of sitting in the Dargah. 

A19