Being grateful is an important philosophy of life and a great wisdom. It is impossible for anyone to be lucky and successful all the time as long as he lives in the world .We should learn how to face failure bravely and to try to deal with it.
I think we should be grateful to life whenever we are unsuccessful or unlucky. Only by doing this can we find our weakness and shortcomings when wwe fail .We can also get relief and warmth when we are unlucky. Being grateful is a way to sing for our life which comes just from our love and hope.