Describes the night the Quran began to be revealed — the "Night of Power," said to be better than a thousand months — later commemorated during the last ten nights of Ramadan, though the surah itself is simply marking the significance of that first descent of revelation. It describes angels and the spirit descending throughout that night by their Lord's permission, with the night itself described as peace until the emergence of dawn — a brief but richly atmospheric description of a single, specific night held to recur every year. The surah briefly asks rhetorically what could make you know what the Night of Power is, before answering its own question — a structure repeated elsewhere in the Quran for concepts considered too significant to introduce without first acknowledging their difficulty to fully grasp.
Commemorated during the last ten nights of Ramadan — one of the most spiritually significant nights in the Muslim calendar traces directly back to this surah. Because the exact date of this night isn't specified, later tradition encouraged seeking it across the last ten nights of Ramadan rather than pinpointing one — a detail often discussed in relation to the value of consistent effort over calculated shortcuts. This question-then-answer structure, used for especially weighty concepts, is often noted by scholars of Quranic style as a recurring rhetorical device meant to signal importance and invite anticipation before delivering the actual explanation.