What are the secrets of the Surahs or verses from the Noble Quran?

If "the secrets of the Surahs" refers to their eloquence and miraculous aspects, then these cannot be confined, as is evident from the opening of the Quranic Surahs. Allah opened fourteen Surahs by praising Himself; seven of them by affirming attributes of perfection, such as Al-Hamd (Praise) in Al-Fatihah, Al-An'am, Al-Kahf, Saba', and Fatir, and Tabaraka (Blessed be He) in Al-Furqan and Al-Mulk. The other seven are by negating imperfection and declaring Allah's transcendence, such as "Subhan" (Glory be to) in Al-Isra, and "Sabbaha lillah" (Glorified Allah) in Al-Hadid, Al-Hashr, and As-Saff, and "Yusabbihu lillah" (Glorifies Allah) in Al-Jumu'ah and At-Taghabun, and "Sabbih isma Rabbika al-A'la" (Glorify the name of your Lord, the Most High) in Al-A'la. This distribution between affirming perfection and negating imperfection is a great secret. Furthermore, Allah has uniquely taken all conjugations of tasbih (glorification)—the verbal noun, past tense, present tense, and imperative—which indicates the impossibility of confining the secrets of the Quran.