We should have complete faith in the mantra awarded by Gurudeva [at the time of initiation]. In all respects. If a disciple doesn’t have this faith, he or she cannot progress an inch. Even if, Guruji hasn’t even explained its glory or when or how it has to be chanted, sitting in which direction… Even if nothing has been told. But our faith should be so strong that all perfection will be attained by this alone. Nothing else.
Firstly, understand this mantra to be siddha [all perfect] and it will reveal everything by itself. This is how it works. Have complete faith. Only then bhajana will be possible.