mat-cittāḥ — their minds fully engaged in Me; mat-gata-prāṇāḥ — their lives devoted to Me; bodhayantaḥ — preaching; parasparam — among themselves; kathayantaḥ — talking; ca — also; mām — about Me; nityam — perpetually; tuṣyanti — become pleased; ca — also; ramanti — enjoy transcendental bliss; ca — also.