The celestial body is, in the seven-layer aura model, the sixth layer, one of the highest spiritual layers, and it is associated with spiritual love, ecstasy and the connection to the divine, described in the modern aura literature as the level of unconditional love and of mystical or devotional experience, often pictured as shimmering pastel light.
In the scheme popularised by Barbara Brennan and rooted in Theosophical subtle-body teaching, the sixth layer stands near the summit of the ascending series, beyond the etheric template and below the outermost ketheric layer, marking the emotional aspect of the spiritual planes as the emotional body marked the feelings of the physical planes. The seven-layer aura is a modern esoteric model, drawn together in the twentieth century from Theosophy and older Indian and Western subtle-body ideas; it is described here as part of a belief tradition and not as a demonstrated structure. Auras have no scientific basis, and no medical, diagnostic or therapeutic claim is intended by this description.
Sources Hands of Light: A Guide to Healing Through the Human Energy FieldBarbara Ann Brennan with Rainbow Body: A History of the Western Chakra System from Blavatsky to BrennanKurt Leland