lolAs of right now, I have no real ideas about Tantric Buddhism, although I am interested in studying it more. As far as enlightenment being transferred from a deity, this is incorrect, and is not what the Buddha taught. Enlightenment can only be reached by ourselves and our own efforts, it cannot be transferred, like salvation in Christianity. The Buddha said that only we can save ourselves.
well i must tell u bro, it's a sort of yoga practice .
there is not just one way to attain enlightnment !
transmission is just an attuning so that body, speech & mind of practitioner becomes one (unified) with deity. This way he becomes a realized enlightened being.
transmission means empowerment of energy & attuning the mind to levels of deity himself !
there r many ways !
but the practitioner realises by himself only else it won't be realization !!!