There is but one Mind, the Universal Mind. The Mind of which we have our existence‘s, our being. We are immersed in a Universal Intelligences. With that being said, allow me to point out that the one Mind has two classifications, the objective mind and the subjective mind. Your question is regarding the SUB-CONCIOUS Mind, a discription of which I wish to disregard, this name is known by many but is miss leading, for this name implies consciousness and this classification is not conscious, but is receptive, for it is Law.
The Universal Subjective Mind or the subconscious mind is Law, Universal Soul, the servant of the Spirit. It is not self-conscious but receptive only of the thoughts that Spirit gives it. A doer that creates and projects into the objective world the thoughts it receives in perfect balance to the embodiment of the thought received. It is the medium through which the Word or the formless changes into form and manifests into the objective world. Your individual use of the Law or Universal Subjective mind is what you call your soul, but it is still one with God. It is universal and no respecter of persons. When anyone has a conscious thought, it is like a seed that is planted into the Universal Subjective Mind and is then crystallized into the objective world. This is the function of the Universal Subjective Mind, the creative principal, the Law of God. It is the changing of Spirit into Spirit. The one Mind is Spirit or Self-knowing Consciousness, Universal Subjective Law, and Body--the objective world--crystallized Spirit. It is one Mind operating within one Mind. What we call our mind is our individualized use of the one Mind. The thing to be AWARE of here is that every thought creates, this knowledge alone is elevated reason for vigilance and knowing self.