SHAFAQNA – Imam Ali (AS) said: Today, the world is the place of action and no place for accountability, and tomorrow on the Day of Judgment, there will be accountability and no place for action [1]. Therefore, on the Day of Judgment, we cannot do anything. That is why, the one who has not believed (in this world), will not believe on the Resurrection Day, even though the truth will be evident to him/her; because the Day of Judgment is not the place for action such as actions needed for the belief. So if we want to have good deeds (such as actions for the belief), we must have these actions in this world and if we die, we are like the one who is sleep and has no power to do anything.
[1] Sharh Nahjul Balaghah, Ibn Abdoh, Vol. 1, and Nahjul Balaghah, Sermon 42.