Antahkarana: (also Antakarana) path or bridge of light from incarnated personality to their Soul, Superconscious
Mind, then Oversoul, Monad or Mighty I AM Presence, Holy Spirit, Christ and God, serving as a medium of communication between the incarnated personality and the aformentioned higher aspects of self. Connects the threefold personality and the Spiritual Triad. The Antahkarana embodies the response of the consciousness within the form to the steadily expanding range of contacts within the environing whole. It is built by the aspirant themself andis the first creation of the soul-infused personality acting as a unitary being.
According to Alice Bailey, the six stages of building the Anahkarana are :
4. Invocation and Evocation
It is also called the rainbow bridge and is the thread and the cord often spoken of, which the disciple creates through meditation, understanding, spiritual practices, and specific, focused spiritual work.