M. Fethullah Gülen said this quote

True poetry is the perception of human feelings, the voice of the heart, open or hidden. It is the lyrics, compositions, and melody of the relation between humankind, the universe and God, a shadow pinpointing each of the truths we can discern everywhere (from the earth to the stars), a photograph of the creation’s projection cast in our feelings and thoughts and framed through words, a heartfelt tune of our loves and joys played on different strings, and it is a bouquet of our faith, hope, determination, beauty, love, reunion, and yearnings.

~ M. Fethullah Gülen

In fact, poetry has always been like archives that peoples have continually used to serve their feelings, thoughts, national identities and cultures, and it has served as a factor uniting different historical periods. Those who had lost contact with their past for a certain period found and experienced the expression of their own selves in poetry, and the were able to see their history as a whole in it.

~ M. Fethullah Gülen

But no matte what kind of an understanding is adopted, whether associated with positivism, which asserts that the truth can only be reached by trial and error, or rationalism, which asserts that everything can be explained and grasped by reason, whether the perspective of romanticism, which overemphasizes imagination and sensitivity, or an approach based on ardent naturalism, whether based on realism, which aims to describe everything as it is including its shortcomings, or a curiosity-raising approach such as surrealism, whether idealism, which asserts that there is nothing real but ideas, or cubism, which asserts that there is nothing real but instead of direct description, or some other such current or perspective, that is not true poetry.

~ M. Fethullah Gülen

Poetry can be more eloquent than the most eloquent sermons, and it becomes a weapon more formidable than the sharpest of swords; whenever such a poem--which finds its correct tune and conveys the excitement of the heart--rings out, all the miserable, heaped drifts of words fly for shelter and bury themselves in ashamed silence. Whenever such a sword of poetry is drawn from its scabbard, all the false princes of words, who have set their thrones on a void, are thwarted and retreat into seclusion.

~ M. Fethullah Gülen