When you normally think of the higher self, it might seem like a single entity, but recently, the awareness of a more intermediate higher self has become the very "I" that we perceive as our normal consciousness. Therefore, I have become aware of the higher self that exists at an even higher, more dimensional level.

Originally, the self, ego, or "I" that governs ordinary logical thinking, which is what we call the mind, is different from the self connected through the heart, which is considered the higher self. However, there is something even higher than that. Currently, when I say "I," I am referring to the higher self, which was originally a separate entity, like a guide, but is now unified with me. This can be roughly equated to the Atman in Vedanta, and it can be called "true self" in Japanese, but the term Atman or "true self" in Vedanta seems to refer to a dimension even higher than that.

Until recently, I was not very aware of this difference, and I recognized the higher self connected through the heart as the Atman. However, it seems that the higher self that exists in the heart might be more appropriately described as a "middle self," an intermediate level of consciousness.

The higher self connected through the heart, which is often called the Atman, is more like an intermediate entity that connects the lower self and the higher self (which is the Atman). Perhaps it would be more appropriate to call it the "middle self."

However, it is certain that from the perspective of the lower self, which is the ordinary thinking mind, the higher self is indeed superior. Therefore, calling it the higher self is not entirely wrong. However, since the higher self as commonly understood in the world usually refers to a state where the self is still "separate" and not yet unified with oneself, there may not be a need to strictly distinguish the terms.

However, if we want to express it clearly, it would be something like this:

- The mind (the thinking mind) is the lower self.
- The consciousness of creation, destruction, and maintenance in the heart is the middle self (the so-called general Atman or general higher self). (Usually, in the stage where it is not yet unified, it is recognized as a consciousness that is somewhat separate from oneself. Afterwards, it overlaps with the body and becomes one.)
- The "filled" consciousness connected from the Sahasrara chakra is (the true meaning of) Atman (or an even higher higher self).
- The oneness consciousness or (as a spiritual term, not a religious one) the Christ consciousness is (the Atman in Vedanta), Brahman (which can also be called the higher self, but it is a certain collective consciousness, so it is something that transcends the meaning of self).

If we classify it in this way, the term "higher self" is somewhat inadequate, and it might also be called a higher-dimensional higher self. This refers to a consciousness that is essentially the Atman or Brahman, which are concepts from Eastern philosophy. I believe that such higher dimensions exist.