What this juz covers
This juz starts at Al-'Ankabut ayah 46 and ends at Al-Ahzab ayah 30. It covers 178 ayahs across 5 surahs.
Memorization rhythm
At one ayah per day, Juz 21 becomes a 178-day path. Every five ayahs becomes a review checkpoint, giving you 36 chances to look away from the Mushaf and recall the words, meaning, and place together.