Action 
must not be felt as a burden. No action which helps your
progress will  weigh heavily on you. It is only when you go
counter to your innermost  nature, that you feel it as a
burden. If you focus only on the worldly  gains, a time will
come when you look back on your achievements and will 
yourself sigh at the futility of it. Entrust your mind the
task of  serving your Lord, before it is too late. Let Him
shape it as He likes,  and your mind will be tamed. You
don’t have to hand over to the  goldsmith an ornament
that is quite beautiful. You give him broken and  dented
ones, or those that have gone out of fashion! So too
willingly  give the Lord your mind that certainly needs
repair, if not complete  reconstruction!
Bagavan Sri Sri Sri Sathya Sai Baba