yatkiṃcid bhairave tantre sarvam asmāt prasidhyati |
mantravīryasamāveśaprabhāvān na niyantriṇā
— whatever; — in the Bhairava (tantra); — in the tantra; — all of it, everything; — from this; — is accomplished, succeeds; — through the potency of penetration (āveśa) into the virility of the mantra; — not; — by any restrainer/constraint (no controlling agent needed)
Whatever is in the Bhairava tantra — all of it is accomplished from this, through the potency of penetration into the virility of the mantra, and not by any constraint.