@thor i'm not really well versed in this but schopenhauer and nietzsche got to the conclusion that art and "creating" stuff is propably the nearest thing to sense humans have. on the other hand there is the naturalistic "get kids", as suggested by the others here in the thread.

my vote would be that there is no deeper sense, so do as you please but minimize negative impact on the world you have. this includes animals and nature: they are struggling harder than we are, be nice to them