The Concept of a Constitution
The whole concept of a constitution emerged from the concept of Natural Law because it was thought that nature works on certain fundamentals and therefore, there is a harmony in nature. Thus human organizations must also work on certain fundamentals and only then, there will be harmony.
In the beginning, when the man was in the state of nature, no constitution was needed. The need for a constitution arose when the men decided to live in a society or a specified territory.