Allah says that the value and grandeur of the night of Qadr is greater than 83 years in which there is no night of Qadr. Believing in this reality makes us spend this night in performing the best of actions and undoubtedly, the best of actions with primary importance are the obligatory actions (wajibat). So, if you have missed prayers that you need to make up for (qadha), strive to the best of your ability to perform them. If you have outstanding khums or zakat or a debt that you need to repay, or if a relative, neighbour, or anybody has a right over you, strive to repay them and fulfil those rights. Of course, we must keep in mind that seeking forgiveness for our sins is from amongst the most important obligations that we must not be heedless of.
Ayatullah Misbah Yazdi