This is an English translation of Ain al-Faqr, one of the prominent works of the famous Punjabi poet and Sufi Shaykh Sultan Bahu. This book reveals the details of the hidden spiritual world, it also sheds light on the symptoms and divine signs of a true spiritual master. The spiritual relevance of Faqr is explained in detail. Much relevant information on the Qadri sufi order has been given in this book. It also asserts that many Adams have appeared on earth before the Adam that we know.