As Muhammad Ali said "Service to others is the rent you pay for your room here on earth."
In this video I talk about giving your time to serve others irrespective of the price you must pay to serve that person. It may be time, it may be help in some other form.
The point is that that person may become an ally to you in other parts of your life or may repay you in some other way. The more you do, the more the universe must do for you.