Qaf. By the Qur’an most sublime. (We have indeed, in spite of what they say, sent it to you to warn people that they will be raised from the dead to account for their lives.
Qaf (The Arabic letter Qaf symbolizes the ego, the first of the three reflections of the absolute essence of man [ego, oneness, identity] In Sufism, Mount Qaf is considered to be the symbol of the ego. Mountains often symbolize the ego), the Magnificent Quran (the disclosure of magnificent Knowledge)!
Al-muntakhab fi tafsir al-Qur'an al-Karim
Qaf, and by what it represents and what it stands for as a natural symbol of adoration, and by the distinguished Quran featuring the glory of Allah Who is the final cause of creation and the highest aim of intelligent creatures