Look. The Mahima of a SatGur is so great that even His Drisht (look) is Amrit.  It is a divine truth that there is Amrit flowing out of a SatGur in all directions from His Dehi, so wherever he looks there is Amrit flowing out of his eyes as well.  The ones who surrender completely with Tunn, Munn and Dhann at His Sat Charans, the Divine Light coming out of His eyes has infinite divine power that such a soul becomes a Sant, his Hirda becomes a Sant Hirda.