This world is a world of opportunity. This world is not meant for gain. Everything is an opportunity.  Some people take this opporutnity in the material sense, and run after material gain. This is not the proper use of opportunity. Whatever we have is an opportunity to develop our personality so that we become deserving of Paradise.

Everything in this world is an opportunity. Whether there is comfort, difficulty, wealth, poverty, old age or youth, going on a journey -- everything is an opportunity to learns lessons. You should learn lessons and develop your personality.