The lack of determining the exact time of some creative and legislative categories and their concealment by God Almighty has raised some questions. Some of these questions are about the time of death, the Day of Judgment, the middle (wustā) prayer, the time for prayer to be answered on Friday and also the Laylat al-Qadr. These have led to questions like: What is the wisdom of this concealment? What are the results? The present article has a descriptive-analytical method and by referring to the verses of the Holy Qur’an and the narrations of the Infallibles (AS) has examined the issue of the concealment of Laylat al-Qadr among the nights of the holy month of Ramadan in general and the nights of the nineteenth, twenty-first and twenty-third in particular and has considered the effects of the mentioned concealment. The findings of the research indicate that the concealment of the exact time of Laylat al-Qadr, for the believers, can have effects such as adherence to the manners of the Infallibles (AS), immunity from arrogance, self-discipline, and ijtihad in worship, all of whom are meaningful in order to value the human souls, their education and excellence in the path of divine guidance.
