One of the challenges of progress on a spiritual path is the falling away of what has unfolded. In other words, our apparent gains can be lost again. Several times.
Yet surrender remains a key part of the process. We have to be willing to release the old so the new can arise. Then what is of value in the old can be restored in the new context. This means nothing is ever really lost but does have to be released periodically. Having vs Holding.
One of the big places this happens is with the stage changes themselves. While development of clarity (sattva) is progressive, when a shift in consciousness itself takes place, the context of self and experience changes. With it, all of our perception does too.
For example, if we happen to have had significant refined perception prior to waking, Self Realization itself will toss that all on the back-burner. As the shift is integrated, it will come back again. But depending on the dominant guna, it may come back as illusory.
The subjective experience of the various shifts can vary widely for a number of reasons. My point is that sometimes our history of perception falls away for a time with a shift. It can then arise again in the new context and be reintegrated.
Part of the Unity shift is surrendering Self Realization and whatever value of God Consciousness that had arisen. Same again with the Brahman shift. We have to surrender our enlightenment to transcend it. It is common for Brahman to arise in 2 stages: the first dominated more by the enlightenment that has fallen away than what is here now.
However, once Brahman is established, we have completed the stages of development in consciousness itself. We have even transcended consciousness. Hereafter, the development is on the clarity side, the refinement.
What this means is we no longer have to let go of the divine to continue. In Brahman, we’re finally in a place to know the true nature of the divine. And to have an eternal “connection”, no longer disturbed by growth.
But this does not mean surrender ends. It is in surrendering our relationship with divinity that the relationship itself becomes a surrender. Only then can we meet the eternal divine as that is it’s very nature, a perpetual surrender.