?This book is an excellent introduction to Sufism, highly intelligent, balanced, lucid, well-written and in places really eloquent.? Islamic Culture, Hyderabad
?Abu Bakr Siraj ad-Din has bestowed upon the world a great benefaction in giving it this very important Sufic treatise, for, belonging as it does to our own time, it is easier for us to assimilate than are the treatises and commentaries of Sufis of old.? Islamic Quarterly
?A wonderful, short and sweet discussion of symbols and the spiritual world...an important and significant window into the Sufi mode of speech.? Journal of Islamic Studies