Angels are evidence that God is taking notice of us. They ask the same always: surrender, obedience, submission, and humility before the Holy One. Some say they make us homesick for heaven.
The Oneness of each to all through God is real, objective, existential. It is an eternal relationship which is shared in by every stick and stone and bird and beast and saint and sinner of the universe. On all, the wooing love of God falls urgently, persuadingly.