Gravity existed long before there was any living being, or living ented, even a bacteria. If they would hav been a knower at that time, they would have known it,. Just as we know no gravity. Right now, we feel the effect of gravity. We feel that we are sitting right here now, we are being pulled down by gravity. What was gravity? Not necessarily, before the universe was created, was gravity there? Yes, a not necesrily. So gravity was not universal. There was a time when the gravity was not there. Even therewere when ther was biven before newton's birt even before they were any human beings.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 2.