EVERYTHING is God, which leaves nothing out, including You. Seeing/realizing this is the end of the notion of separation.
SEPARATION is an idea that when believed in/identified with automatically brings suffering. Why? Because while on the surface things may appear to be “different,” in Reality nothing is separate from ALL that IS.
“Every effect is the cause, as THAT.” -Swami Chinmayananda
This is why talking about or “believing” in Oneness doesn’t work. Because an intellectual understanding doesn’t go deep enough, is not potent enough, doesn’t have enough juice to “do the business.” You have to see/realize it with every cell of your being. It’s deeper than thought… it’s a direct “knowing.”
When this happens, a release or feeling of relaxation can happen resulting in an experience of “traveling lighter,” as Paul Hedderman says.