Existence pervades all existing things. Consciousness pervades all experience. Krishna is saying by that all things in this universe are pervaded. The brilliant insight of Advaita Vedanta was this pure consciousness, this pure existence are one and the same thing. There's a new term common which is being popularized in some direct path teachings these days. They use the term presents. When you say presents with a capital P, note there are two elements to it. There is a sense of existence and there's a sense of awareness.