The 4 Quls (Surah Al-Ikhlas, Surah Al-Falaq, Surah An-Naas, and Ayat-ul-Kursi) are highly revered in Islam for their immense spiritual benefits, protective qualities, and deep connection to the core of Islamic teachings. These surahs are regularly recited by Muslims as a form of seeking refuge in Allah from harm, as well as a way to maintain spiritual strength and guidance.