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.
The acquirement of spiritual wisdom does not necessarily prevent us from making worldly mistakes; but because it develops the qualities that will prevent them, and because it takes to heart the lessons of experience, humbly and receptively, it does reduce the frequency of those mistakes.