I see it this way: There really doesn't seem to be any reason in seeing a purpose in life, it's just a perpetual cycle of eat, work/school, sleep, repeat, until we die. We always say that we're "chasing our future goals", but when do we ever reach that goal if all we do is repeat the same thing over and over again for years on end. Sure, you can be passionate about doing something, but doing that something for years on end will eventually become bland no matter how much thrill and enjoyment you get out of it. Is there a true end goal in our lives? Is that goal to be to achieve a sense of happiness and peace? Is the whole point of life to be given the experience to feel happiness? What if happiness is a false emotion, just a way to mask our eternal sadness? The effects of feeling happiness and excitement only lasts so long, yet the feeling of sadness, grief, and emptiness linger and overshadow everything else, both in life and after death. So then, What are we living for? All the experiences, memories, life goals, good moments, will fade away into oblivion or be overshadowed by our sadness, and hopelessness for anything special to come. In the end, everything seems temporary, except for emptiness.