What is the difference between work and fruit of work?

[Reply to Mr.Anil] The fruit of work is another form of work only. Work is a form of energy and fruit of work (money) is a form of matter. Energy and matter are inter-convertible according to Einstein. Therefore, sacrifice of fruit of work is equal to sacrifice of work. The sacrifice of fruit of work is convenient for the employed house holders. Of course, the house holder should also work for God in leisure. Hence, for the house holder, both sacrifice of work (karma sanyasa) and sacrifice of fruit of work (karmaphala tyaga) are convenient as per the available time. For a saint, who is not employed, only sacrifice of work is possible. Therefore, a saint should be always engaged in the work of propagation of divine knowledge.