The astral plane, also called the astral realm or the astral world, is a plane of existence postulated by classical, medieval, oriental, esoteric, and new age philosophies and mystery religions.^[1] It is the world of the celestial spheres, crossed by the soul in its astral body on the way to being born and after death, and is generally believed to be populated by angels, spirits or other immaterial beings.^[2] In the late 19th and early 20th century the term was popularised by Theosophy and neo-Rosicrucianism.

Another view holds that the astral plane or world, rather than being some kind of boundary area crossed by the soul, is the entirety of spirit existence or spirit worlds to which those who die on Earth go, and where they live out their non-physical lives. It is understood that all consciousness resides in the astral plane.^[3] Some writers conflate this realm with heaven or paradise or union with God itself, and others do not. Paramahansa Yogananda wrote in Autobiography of a Yogi (1946), “The astral universe … is hundreds of times larger than the material universe … [with] many astral planets, teeming with astral beings.”

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My sense is the term astral plane has fallen a bit out of favor. In some cases it is replaced by ethereal plane. In Buddhism, it is traditionally referred to as ultimate reality or vaguely as nirvana, or what comes after nirvana. More recently among scientists and philosophers, we are seeing the concept of a conscious universe or a thinking universe, a universe in which consciousness is a primary force, feature or dimension. However we refer to it, we need a term that evokes dimensions or planes of awareness beyond earthly or mundane awareness or ‘relative reality’, as it is put in Buddhism.

The concept of an astral plane dates back to Plato if not before. The Buddha was referring to something like that without using any term when he spoke about nirvana. The Buddha was a Scythian who argued against the strong Scythian belief in an absolute distinction between right and wrong and a single, great God (Ahura Mazda) who created the world and could be known only through doing good.

It’s a good development that scientists and philosophers today are increasingly seeing what the Buddha and many others have seen throughout the ages. I believe deep meditative states and a moral life afford us frequent opportunities to commune with or glimpse dimensions or realms beyond our normal default cultural behavioral realms.

Buddhism is a profoundly ethical teaching but it also rejects absolutes. We humans are characterized by emptiness, impermanence, and the suffering wrought by clinging to any concept, belief or idea, and yet are capable of freeing ourselves from ‘relative reality’ through ethical practice and experiential samadhi states.

The Buddha remained silent on matters related to anything like the astral plane because he knew that focusing on ethereal aims (especially in his day?) tends to reify them, which then leads to ossification, doctrine, worship without reason. I wonder if in our day, the Buddha would reason differently as many reasonable thinkers now accept that consciousness may be inexplicable by rank materialism or particle physics or biology based on those; and thus may/must be a primary aspect of all that we know of.

My current understanding of Buddhism and ancient history has been recently influenced by Christopher Beckwith’s The Scythian Empire: Central Eurasia and the Birth of the Classical Age from Persia to China, which I highly recommend to Buddhists and everyone else. ABN