Antarātma
From Theosopedia
(ātman). Sanskrit for “inner Self” and used by Helena P. Blavatsky to denote the latent spirit present in the five tanmātras (lit. “measures of that”), i.e., the vibratory powers which create the five basic elements (mahābhūtas): ākāśa (sometimes misleadingly translated “space”), vāyu (air), tejas (fire), ap (water), and pṛthivī (earth).
R.W.B.