Many Muslims regard Sūra 36 with special reverence because, according to tradition, Islam’s messenger esteemed it highly and called it the “heart” of the Quran.
The sūra contains striking descriptions of the signs of the Creator’s power and providence that invite human gratitude. On the other hand, the sūra portrays a scene of reward and punishment that awaits humans (“sons of Adam”) on the Day of Resurrection.
This sūra’s parable about the harsh threats that come to two of God’s messengers, and a third character who rushes in to defend the messengers, has intrigued both Muslim commentators and Christian readers.

36.1–3 – Yā ’ Sīn. By the wise Qur ’ ān! Surely you are indeed one of the envoys
On the disconnected Arabic letters that begin this sūra, see the comment at 2.1.
The sūra starts with an oath, followed by the now characteristic claims for the messenger and his recitation (vv. 2–6). Similar claims appear at verses 69–70. On the word qur ’ ān , see the comment at 2.185.