Indivisible oneness is the creative energy that turns a seed into a maple tree, or a watermelon or a human being or anything else that's alive. It's invisible, omnipresent, and absolutely indivisible. We can't divide oneness. Meditation offers us the closest experience we can have of rejoining our Source and being in the oneness at the same time that we're embodied. This means we have to tame our ego.
Prayer is listening to the voice of the One who calls you the beloved. It is to constantly go back to the Truth of who we are and claim it for ourselves. I'm not what I do. I'm not what people say about me. I'm not what I have. My life is not rooted in the world, the things the world gives me. My life is rooted in the truth of my spiritual identity. Whatever we do — we have to go back regularly to that place of core identity.