Once the believers are rewarded with paradise (Jannah) by Allah, they would have achieved a state of unbounded happiness. But that will only be the beginning of their happiness as that day they will hear a caller who will call:

‘O People of Paradise! Your Lord – Blessed and Exalted – requests you to visit Him, so come to visit Him!’ So they will say: ‘We hear and obey!’ Until, when they finally reach the wide valley where they will all meet – and none of them will turn down the request of the caller – the Lord – Blessed and Exalted – will order His Chair to be brought there. Then, pulpits of light will emerge, as well as pulpits of pearls, gemstone, gold, and silver. The lowest of them in rank will sit on sheets of musk, and will not see what those who are on the chairs above them are given. When they are comfortable where they are sitting and are secure in their places, and the caller calls: ‘O People of Paradise! You have an appointment with Allaah in which He wishes to reward you!’ So they will say: ‘And what is that reward? Has He not already made our faces bright, made our scales heavy, entered us into Paradise, and pushed us away from the Fire?’ And when they are like that, all of a sudden a light shines that encompasses all of Paradise. So, they raise their heads, and, behold: the Compeller – Exalted is He, and (Noble and) Holy are His Names – has come to them from above them and majestified them and said: ‘O People of Paradise! Peace be upon you!’ So, this greeting will not be responded to with anything better than: ‘O Allaah! You are Peace, and from You is Peace! Blessed are You, O possessor of Majesty and Honor!’ So the Lord – Blessed and Exalted – will laugh to them and say: ‘O People of Paradise! Where are those who used to obey Me without having ever seen Me? This is the Day of Increase!’ So, they will all give the same response: ‘We are pleased, so be pleased with us!’ So, He will say: ‘O People of Paradise! If I were not pleased with you, I would not have made you inhabitants of My Paradise! So, ask of Me!’ So, they will all give the same response: ‘Show us your Face so that we may look at it!’ So, the Lord – Mighty and Majestic – will remove his covering and will majestify them and will cover them with His Light, which, if Allaah – the Exalted – had not Willed not to burn them, would have burned them. And there will not remain a single person in this gathering except that his Lord – the Exalted – will speak to him and say: ‘Do you remember the day that you did this and that?’ and He will remind him of some of his bad deeds in the Worldy life, so he will say: ‘O Lord! Will you not forgive me?’ So, He will say: ‘Of course! You have not reached this position of yours (in Paradise) except by my forgiveness.’ So, how sweet is this speech to the ears, and how cooled are the righteous eyes by the glance at His Noble Face in the Afterlife… Allah reminds us of this day in the Quran in the following verse: {Some faces that Day will be shining and radiant, l ooking at their Lord…} (Surah Al-Qiyaamah:22-3) [Source: Haadi al-Arwaah ilaa Bilaad il-Afraah by Ibn al-Qayyim, pg. 193] — End Source: IqraSense.com