This question is posed by our teacher in religion class. Most of our answers were sacrifice that we are given life to endure sacrifices. But our teacher said that is wrong because we are given life to enjoy the material things that this world can offer. Don't get me wrong, it's not being materialistic. The phone you are holding is a part of this world and you are having it not only for the facility but for your convenience and enjoyment. Likewise we also enjoy the food we eat and the sights that we see particularly nature.