The intent of this essay is to show that this present life is meaningless unless it is followed by eternal life. The purpose of this essay is not to say that this life is not good. Quite the contrary.
Life is good.
Life is in fact excellent, and there are many splendid and noble goods to be had and experienced in it. The mistake to avoid, though, is to take this life as all the good there is. Travelling though life, it's very easy to become entralled by all the goodness here. This sadness comes from the limitedness of the things in the world. They are limited in two ways, in their quality and in their temporality.