How can someone who entered Hell and was then removed from it enjoy Paradise, given their recollection of what they suffered in the Fire?

The People of Sunnah and Community believe that some Muslims will enter Paradise without reckoning or punishment, some will enter it after reckoning, and some will enter it after punishment in the Fire. Those who are punished and then emerge from the Fire will not have their enjoyment of Paradise marred by their previous torment, for Paradise is a abode of bliss. The legal proofs have clarified the state of these individuals after their emergence from the Fire; they will be cast into the "River of Life" to grow anew, like plants after being burned. Their appearance will change from blackness to whiteness, becoming like pearls, and Allah's pleasure will descend upon them, so He will never be displeased with them. Allah will bestow upon them all the blessings they see in Paradise, to the extent that they will believe they have received what no one else in the worlds has received. Although they will initially be called "Jahannamiyyun" (people of Hell) in Paradise, this name will be removed from them, and a single dip in Paradise will make them forget all the misery and hardship they experienced, even the misery of the Fire, for Paradise is an abode of everlasting bliss where there is no misery.