I’ve tested these mantras and i felt their power in the area between the genitals and the anu.Imo they’re not the same as ‘‘Lam’’,becauseThe effect takes place a little lower from the base of the spine.
‘‘Hsauh’’ is the main one.I’ve donne it many times and it feels really powerfull and erotic.
‘‘Hsraim hsklriim hsrauh’’ is the turbo charger.Almost like an orgasm in the same area.(between genitals and anu).
These mantras are taken from David Frawley’s books