It is the duty of every Muslim, man, woman, or child to read the Qur an and understand it according to his own capacity. If any one of us attains to some knowledge of understanding of it by study, contemplation, and the test of life, both outward and inward, it is his duty, according to his capacity, to instruct others, and share with them the joy and peace which result from contact with the spiritual world. The Qur an indeed every religious book has to be read, not only with the tongue and voice and eyes, but with the best light that our intellect can supply, and even more, with the truest and purest light which our heart and conscience can give us. It is in this spirit that I would have my reads approach the Qur an. -From the introduction