A completely revised second edition of a very popular volume. Key to the Garden is an elaborate exposition of the Prophet Muhammad?s teaching that the inner life must pass through three stages: affirmation of faith with the tongue, then the mind, and finally the heart. The Muslim Testimony of Faith, that ?there is no deity save God,? is at once the essence and the highest principle of Islam. This book is a demonstration, by one of the greatest recipients of the Prophet?s heritage of knowledge, of how the whole spectrum of Islamic thought and worship unfolds naturally from these few words.