(Greek γνώσις) Knowledge.
The word Gnosis refers to the knowledge we acquire through our own experience, as opposed to knowledge that we are told or believe in. Gnosis - by whatever name in history or culture - is conscious, experiential knowledge, not merely intellectual or conceptual knowledge, belief, or theory. This term is synonymous with the Hebrew "Daath" and the Sanskrit "jna."
The tradition that embodies the core wisdom or knowledge of humanity.
"Gnosis is the flame from which all religions sprouted, because in its depth Gnosis is religion. The word “religion” comes from the Latin word “religare,” which implies “to link the Soul to God”; so Gnosis is the very pure flame from where all religions sprout, because Gnosis is Knowledge, Gnosis is Wisdom." - Samael Aun Weor, The Esoteric Path
"The secret science of the Sufis and of the Whirling Dervishes is within Gnosis. The secret doctrine of Buddhism and of Taoism is within Gnosis. The sacred magic of the Nordics is within Gnosis. The wisdom of Hermes, Buddha, Confucius, Mohammed and Quetzalcoatl, etc., etc., is within Gnosis. Gnosis is the Doctrine of Christ." - Samael Aun Weor, The Revolution of Beelzebub