In the tenth volume of twelve commenting on Buddha’s essential teachings, Osho says that wisdom, which he calls knowing, arises from within, from inner silence. Knowledge from others is secondhand; the key to inner direction, knowing, is meditation.

This is a guide book for living an enlightened life. In the eleventh of twelve volumes of commentary on Buddha’s essential teachings, Osho comments on Buddha’s advice to his enlightened disciples, interpreting his message for the modern world.

Within every human heart lies the seed of enlightenment. In the last of twelve volumes of commentary on Buddha’s essential teachings, Osho says the everybody, following “the law of freedom,” can achieve the ultimate joy, the ultimate truth.

Although Gautama the Buddha spoke for over forty years, he is reported to have said that he never uttered a single word. The Diamond Sutra is one of his mysterious unuttered sutras and is considered by Buddhists to be the most precious.

In The Hidden Harmony, Osho introduces Heraclitus, a Greek philosopher who was thought of as eccentric, using outlandish statements to put across his message. His audience found him difficult to understand ‒ he was known as “the Riddler” and “the Obscure,” but Osho describes Heraclitus as a rare flowering; a highly penetrating soul.