Study meaning: We sent it, the Quran, down on the Night of Decree.
The pronoun it refers to the Quran. This night is honoured by its connection with revelation. Detailed accounts of the stages of revelation belong to tafsir; this short lesson does not reduce that subject to a guessed timeline.
Learn this opening confidently before adding the next ayah. If a phrase is difficult, practise less material and return later. A parent can listen and encourage without asking the learner to compete.