A tantric ritual that activates and empowers Buddha-nature factors to grow so that they will eventually bring about enlightenment.
A tantric ritual that activates and empowers Buddha-nature factors to grow so that, through repeated, sustained tantric practice, they will eventually transform into the Three Corpuses (Bodies) of a Buddha. An empowerment also plants new seeds, or potentials, that will likewise grow in the same manner. The term is often translated as "initiation."
J Hopkins: empowerment; initiation; consecration; power; force; control.