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.
Essentially, prayer is attentiveness to God, and this has various degrees, from weak or faltering to total. This attentive attitude is itself the fruit of love; God's love becomes the dominant commitment of the will. The person has achieved purity of heart and spiritual wholeness. Joy takes hold of the heart, transmuting every moment into the irresistible attraction and power of divine love.