Vigyanamaya kosha is one of the five koshas that cover Atman. Vigyanamaya kosha literally means a shell that is composed of wisdom (vijnana) or intellect. It is the fourth covering of Atma.[1] It is also the first layer of the causal mind located in the Vishudda chakra, the Ajna chakra and the Sahasrara chakra. Metaphysically, it is considered the first embodiment of light.[2]
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