Relative truth means that each truth is interdependent on the previous truth to exist. Why do we call our family members relatives? Because we are relative to one another. My father is relative to my relative.
My existence is relative to his existence, and his existence is relative to his father’s existence. We are all relatives to one another; that means we are interdependent on one another for each other’s existence. That is the relative truth.
Now the source of all the relative truths cannot be a relative truth; it has to be the absolute truth. So ultimately everything comes from nothing or everything comes from absolute truth; everything cannot come from another relative truth. And if we accept that everything coming from absolute truth—which is more logical and scientifically consistent with our perception that everything does not come from nothing—then we have to study that absolute truth. Bhagavad Gita is the study of the absolute truth, very scientifically presented by the absolute truth Himself.
When we come to the level of absolute truth then there is no beginning and no end. Because it’s the source of all relativity and it is transcendental—beyond relativity.
By Radhanath Swami