a man who just wants to get off is a expression of nature procreating itself. we owe it all to nature. to agree with life, we have to be naturalists, not in a reductionistic sense (reducing life to it's exterior appearance of bodies or atoms), but in the sense of being empirical about phenomenal reality.
a man's ideas about wanting a child, while getting off, are just ideas. they are not always a strong causal force, they don't always have a high order in the clockwork. not because they are interior, everything that is, is interior and exterior at once, but because verbal thoughts are somewhat shallow in comparison to the deeper intelligence that directs the totality of behavior and thus the act of getting off and procreating.
so we don't owe as much to verbal thoughts, but either way, they may have been long forgotten, while his genes stay around, even though genes are alive and develop as well.
the story of a fox is, that he procreates. a story does not have to be verbalized.
https://www.facebook.com/quentin.lenel/videos/10206225825583102/
the more we verbalize, the more our story is at danger of being removed from human nature and drifting of into silly fantasies.
a mild touch of fantasy ("If it had not been for me, the world would have been so much worse off") doesn't always ruin a story that still wraps itself well around the empirical facts of life ("I lived a simple life, I always tried my best").
if someone's story of life is just a chronological story, that is just fine, but the fantasy still comes into play where the person feels a grudge about how his story is not any more fantastic.
however typically a chronological story is also loaded with judgements about why it came to be that way, which implies unspoken fantasies about how it should have been all different.
a plain story of purpose is: i am the one who was born to be really good at being a carpenter.
a fantastic story is: i am the best carpenter in town and without me, people would have to suffer the most ugly furniture. i am afraid the competition wants to burn down my business.
both stories deliver the same sense of purpose. the first story is descriptive of what is. the second story is adding some fantastic ideas about what could be and is thereby adding suffering in the form of nagging doubt about the accuracy of the fantasy part. because what if it's not true? if you think you have to be the best carpenter, for your carpeting to be a worthwhile cause, then you secretly feel that your life has no true purpose, because you are probably not really as good as you like to think.