Looking into the object we initially see difference. However as we continue to gaze into the field of objects we start to see a homogenous nature. The world of difference started to play a secondary role. Initially the difference is still there but we have a knowingness that it’s not all that’s there. We sense and can almost see the even presence of consciousness virtually everywhere. Vision is transparent as it were.
Over time that consciousness becomes lively and even vibrant and seems to generate its own self effulgent light. Over time that light becomes richer and even golden. Over time that light gives way to a strange vision one of nothingness. We actually transcend vision and see the true nature of the object.
What happens psychologically is initially we see our own consciousness in the object and feel like we are seeing our own Self in the object but over time the visual evolution begins to be reflected in our own consciousness. The object’s nothingness causes us to find our own nothingness. This gives rise to the state of No-Self. Its a loss of identity. The “sat” part of sat chit ananda.
Going from small self to big Self is an internal development. Going from big Self to No-Self is initially an external development through the mechanics of perception that ultimately reflects back on our own consciousness.
Self and No-Self together simultaneously equals Brahman, Wholeness of life.