His central message was that the self we commonly identify as “I” is not a separate, isolated entity but rather an expression of the universe itself. He often used vivid metaphors, such as the famous analogy of life being like a musical performance: the point is not to reach the end but to enjoy the music as it unfolds.
Throughout his life, Watts authored over 25 books and countless essays, along with recorded lectures that remain highly influential. Some of his most important works include:

The Way of Zen (1957): One of the first books to explain Zen Buddhism to a Western audience in an accessible way, combining historical overview with philosophical insights.

The Wisdom of Insecurity (1951): Explores the paradox that seeking security in life is futile, and true happiness comes from embracing uncertainty.

The Book: On the Taboo Against Knowing Who You Are (1966): Explores the taboo surrounding self-awareness and challenges the notion of a permanent, separate ego.