The highest realization was described by Bhagavan in terms of the Ajata doctrine of Advaita Vedanta: there is only pure Selfhood as a Totality, no creation, no being separate, no seeker, and no enlightenment. His life is testimony to the fact that it is not an unworldly abstraction.
All sadhana attempts to 'enliven' this basic awareness and thereby shift our identity from the ever turbulent personality patterns into that rocklike peace.