Gnosis is a term used in chaos magick when your mind goes blank. In other words your conscious mind goes down and lets your subconscious take over for a few seconds. As Tzimon Yliaster puts it, "In Chaos Magick, gnosis is a lapse in conscious/rational/discursive/discriminatory mind that allows the subconscious "magickal mind" to fully function." The state is normally achieved by exhaustion or orgasm.