Indian numerology, Chaldean numerology and power of numbers
Numerology is a science of exploring hidden powers of numbers and their influence on human beings. The most ancient form of Numerology is called Chaldean Numerology which is generally followed in India also.
Indians see numbers as symbols of certain types of cosmic powers. And they link them with spirituality. For example 0 is a number that encircles some part of the infinite universe. The inner part of it is separated from the vast outer space. This is similar to human body where the soul (Jeevaatma) resides. A human being always feels that he is separate and the outer universe is different from him. He confines his soul with his present body and thinks that he and the body is one and the same. Thus he has forgotten the truth that he is the all-pervading God. This is called cosmic delusion (Maaya). So 0 represents the cosmic delusion. This means 0 gives false impression that what ever is not there, is there. Let us add 0 after 1, then that 1 appears as 10. This means 1 is assuming a different form, because of 0. This is same as the super-soul appearing in different forms because of Maaya.
Every number will have mental and spiritual plane represented by its top half part and the material worldly affairs are represented by its remaining bottom part.