It is an energy transmission of energy.
In this case it is the energy of VITAL TANTRA that links beyond that to something even way more absolute.
VITAL TANTRA is an unlimited sphere of intelligent energy.
It is an aspect or new lineage in TANTRA.
TANTRA is itself a life mastery, awakening or spiritual development path that takes you back to a state of unity.
Body activation or energy activation is SHAKTIPATA.
This is the mantra code that activates this specific process.
Shaktipata = Diksha = Initiation
They are very similar concepts.