Surah Yaseen contains all pillars of Islam and because of that is called the heart of the Quran. These pillars include Tawhid (Monotheism), Nabowwat (Prophethood), Adl (Justice), Imamate, Ma'ad (Resurrection).
YΔ SΔ«n is the 36α΅Κ° sΕ«rah of the Quran. It is regarded an earlier "Meccan surah".