If one's life is simple, contentment has to come. Simplicity is extremely important for happiness. Having few desires, feeling satisfied with what you have, is very vital: satisfaction with just enough food, clothing, and shelter to protect yourself from the elements.
Dalai LamaInner peace is the key: if you have inner peace, the external problems do not affect your deep sense of peace and tranquility... Without this inner peace, no matter how comfortable your life is materially, you may still be worried, disturbed or unhappy because of circumstances.
Dalai Lama