If you desire to wash off the dirt accumulated from the clothes you wear, you need both soap and clean water. So too, if you are anxious to remove the impurities that have got accumulated in the mind, both Vidya (spiritual knowledge) and Thapas (penance) are essential. Only when both are used can the levels of consciousness be thoroughly cleansed. No vehicle can move without at least two wheels, nor can a bird fly with just one wing. So too, no one can be rendered holy or purified without Vidya and Thapas.
Vidya Vahini, Chap XII.
No matter what religion you follow or what form of lord you believe in always think and ponder on what he has given you and not what you don't have and with each passing breath thank him for what he is giving you.
If your hands are working thank him and think of people who don't have hands, if you have a bed to sleep on thank him and think of people who don't have it and so on for everything you have.