This slim volume is neither meant to demonstrate soundness of any particular creed, systems of belief or school of thoughts nor is this a polemical or scholastic effort to refute the beliefs of any sects. This work may prove disappointing to those who go through it with a view to find such matters discussed in it. There are innumerable works on the subject. Especially in languages spoken by the Muslims, such as Arabic, Persian and Urdu; so large is their number that it is not possible to touch upon them even briefly.