There are ranges of consciousness beyond our thinking mind that remain unreached for now. But with our further evolution we are destined to reach these presently unreachable heights.
It is not some adverse power that has driven us out of our heavenly home. It is out of our own choice that we have landed here to build perfection upon earth with base material and transient things.
In our secret self we too belong to this world that exists on the heights of luminous mentality. Our strivings are an effort to reach out to the realms from where we descended.
Beyond our struggling human mind there exists an Ideal world of Truth and Light where grief and error have no place. The beings of this world exist in a self-luminous light and perfect sight. These are the high Heavens of the Mind.
In Canto XI Sri Aurobindo introduces us to the realm of spiritual mind or simply the spiritual realm. Many mistake it for the highest reality and stop here. The action and workings of this realm are being described here.