The Soul of our souls is the Supreme Soul. I have described the ultimate realization called Self-Realization as seeing and knowing the same Self in our different bodies. This could then be said: The Self of our selves is the Supreme Self. The Supreme Soul or Supreme Self is our Universal Mind or Universal Consciousness. Another way of putting this is that when your personality or ego unites with the Supreme Soul you become Enlightened. The light becomes turned on in the inner room of your mind and you see and know Universal Consciousness in yourself and everyone else. You become much more peaceful with a feeling of relief that you finally understand our interpersonal reality and the overall knowledge that the cosmos is permeated with the Great Spirit or is the Great Spirit. This state is referred to as Divine Union in Mystical Theology which is a branch of Theology.
The Gospel of Sri Ramakrishna, 395-396, Ramakrishna – Vivekananda Center 1969