People are happiest when they're the most productive. People enjoy tasks, especially creative tasks, when the tasks are in the optimal-challenge zone: not too hard and not too easy. To some extent, that has always been true. But it becomes even more true as work becomes more about brains and creativity.
Nearly all men and women are poetical, to some extent, but very few can be called poets. There are great poets, small poets, and men and women who make verses. But all are not poets, nor even good versifiers. Poetasters are plentiful, but real poets are rare. Education can not make a poet, though it may polish and develop one.
If you read novels of the 19th century, they're pretty experimental. They take lots of chances; they seem to break a lot of rules. You've got omniscient narrators lecturing at times to the reader in first person. If you go back to the earliest novels, this is happening to a wild extent, like 'Tristram Shandy' or 'Don Quixote'.