The effulgent, pure and perfect Self is ever present within this body. In purity of heart, the cognitive consciousness, is gained the direct vision of the Self, the absolute God. Love of truth, discrimination, right knowledge, serenity, self-discipline and intuition are the prerequisites to the attainment of realization of the supreme Self.
Truth alone conquers, falsehood never does. The path to God is built on the foundation of truth. By following that path the sages of renunciation reach the transcendental state of the absolute Truth.
Not by the sight of the eyes, nor by the words of speech, nor by the power of any other sense faculty can the universality of the supreme Self be perceived. When the heart is made pure by the Yoga of meditation the initiate realizes the formless Brahman in the immensity of the
effulgent pure-consciousness.
Mundaka Upanishad
Light on Kriya Yoga
Translation by Swami Premananda