This book offers the concepts, principles and history of the Sufi path brought to the West by Hazrat Inayat Khan. Within these pages the reader will find the spiritual lineage, biographical sketches, prayers, basic meditation practices, inspired sayings, poetry, musical compositions, and guidance for spiritual living while engaged in daily life. Also included are sections on the organisation and activities, such as kinship, spiritual healing, and the interfaith Universal Worship service. This is a rich sourcebook for all interested in the life and teachings of Hazrat Inayat Khan, and in the school of Sufism that he established and which continues today in both the East and the West.