Sex is the part of the life and it is need of every person in order to fulfill his needs for the sex. So whether it is the male or female every person has the need for the sex. So every person sex with his girl friend or wife in order to make the life good and enjoyable so many people like to do sex with the wife and sex partner. So when the people like to have sex in the life. Sex is a charm of the life.

So for a balanced life the person has to do sex with the people. When you can think it as the good tool but there are some other philosophies of the sex. So when the people like to have some fun in their life so they do sex for fun.

But you can not say this is the major tool in life because there are many other things which the people use in order to enjoy the life. So this is the phenomena of the sex. So sex serves as the tool in the life of the human being.