"One who is a true nondualist becomes silent. Non-duality is not a subject for discussion. As soon as a person tries to talk about it or explain it, the Knowledge of duality creeps in. When there is thought or imagination, there is a duality within the mind, and one has not yet attained nondual knowledge. In this world only Brahman, or the Nirguna aspect of the Divine Mother, has not been defiled."
-Sri Ramakrishna and His Divine Play