The Upanishads are Sanskrit spiritual texts that are part of the foundation of the philosophical school called Vedanta. The Katha Upanishad is one of the earliest, ‘principal’ Upanishads, and may have been written in the 3rd c. BCE.

Above the senses are the objects of desire; above the objects of desire mind, above the mind intellect, above the intellect manifest nature.

Above manifest nature the unmanifest seed, above the unmanifest seed, God. God is the goal; beyond Him nothing.

God does not proclaim Himself, He is everybody’s secret, but the intellect of the sage has found Him.

Translation Shree Purohit Swami and W. B. Yeats