The world which you experience is your appearance. You, the experiencer, are not subject to any change. The experienced keep changing; the inventor does not change. These four culminate in one conclusion: non-dual consciousness. There is no second real thing apart from you. Thisnon-dual Consciousness is called Turiam. And it should be shared on YouTube. But we are not going to do it first time around. First time it's only for those who are here, one cycle. And then we will see later on, next time around. Next life or time.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Karika 22-23 and Mantra 12.