comment critique on intro and conclusion

Hi! I havent written an essay in years. I was wondering if I could get some feedback on my intro and conclusion. I think Im just about done with my essay, with the exception of these two portions. Thanks!
Intro:
The riddles in A Feast of Creatures historically represent and exemplify the importance of the vernacular texts and its significance amongst the great literary artists, such as Emily Dickinson. The mechanics and purpose of deepening the reader’s perspective on society, the world, and the subject itself is well developed throughout the three pieces examined. This comparison gives validity to the vernacular texts as a whole; from children’s rhymes to riddles written in old English, they are each significant in the world of poetry and literature. The purpose of a poem is not only for simple pleasure and entertainment, the purpose of these particular poems are a riddle within a riddle. The three poems of discussion included a riddle not blatantly exposing the answer, another hinting the answer by giving the letters, and one that gave the answer in the riddle itself. The three have different approaches to riddling the reader, but they all have the same effect. Though the broadened, or deepened, perception on the world may have differed from reader to reader, the riddles purpose was still seen through: for the reader to gain understanding. One’s purpose in life may still be an inscrutable and mysterious matter for now; and thus, meaning that life is similar to the Sphinx. As Oedipus solved the riddle of the Sphinx, individuals must solve the riddle of purpose in life.

Conclusion:
The riddles in A Feast of Creatures historically represent and exemplify the importance of the vernacular texts and its significance amongst the great literary artists, such as Emily Dickinson. The mechanics and purpose of deepening the reader’s perspective on society, the world, and the subject itself is well developed throughout the three pieces examined. This comparison gives validity to the vernacular texts as a whole; from children’s rhymes to riddles written in old English, they are each significant in the world of poetry and literature. The purpose of a poem is not only for simple pleasure and entertainment, the purpose of these particular poems are a riddle within a riddle. The three poems of discussion included a riddle not blatantly exposing the answer, another hinting the answer by giving the letters, and one that gave the answer in the riddle itself. The three have different approaches to riddling the reader, but they all have the same effect. Though the broadened, or deepened, perception on the world may have differed from reader to reader, the riddles purpose was still seen through: for the reader to gain understanding. One’s purpose in life may still be an inscrutable and mysterious matter for now; and thus, meaning that life is similar to the Sphinx. As Oedipus solved the riddle of the Sphinx, individuals must solve the riddle of purpose in life.

The main focus of the essay are the three riddles. My teacher didnt like my first introduction and said I needed to stick to the three riddles and be specific. He said I could have the sphinx story, just not taking up the whole intro. So how does this look? Comments critiques are greatly appreciated!