During an empowerment, you receive vows and pledges. Samaya is the Sanskrit word for pledges.
The difference between the two is that vows are things you shouldn't do, whereas pledges are things that you should do.
There are different pledges for different kinds of empowerments, so ask someone at the empowerment.
No empowerment, no pledges.
"All memories and thoughts are the union of emptiness and knowing, the Mind.
Without attachment, self-liberating, like a snake in a knot.
Through the qualities of meditating in that way,
Mental obscurations are purified and the dharmakaya is attained."
-Ra Lotsawa, All-pervading Melodious Drumbeats
"You must experience that the various thoughts, in whatever form they arise, are an empty appearance and not a definable entity."
-Clarifying the Natural State pg. 33