If that is all there is to life, then those who consider it thus will realize they should think about the hereafter. Just as some think, "While we are able to work we must strive in order to make provision for our old age that we may be more comfortable", so those who think of the hereafter say, "Life is short, it is nothing but an opportunity. We must prepare something so that later we shall have the benefit of it." Maybe there will be some who have the right understanding, while others make too much of it and have a wrong conception of the hereafter; yet the wise ones who believe that they must use the time and opportunity which is given to them in this life to prepare for the next one, have accomplished a great deal. It is something to admire.