Deep and Visually stimulating. Our Existence has been variously defined by sources. In common usage, it is the world we are aware of through our senses, and that persists independently without them. Others define it as everything that is, or simply everything.Epistemology studies criteria of truth, defining "primary truths" inherently accepted in the investigation of knowledge. The first is existence. It is inherent in every analysis. Its self-evident, a priori nature cannot be consistently doubted, since a person objecting to existence according to some standard of proof must implicitly accept the standard's existence as a premise.Hope you enjoyed it,F37R