"And for all are degrees according to what they have done," meaning: according to the extent of their deeds.

Yahya: On the authority of Ismail ibn Muslim, from Abu al-Mutawakkil al-Naji, who said: The Messenger of Allah (peace be upon him) said: "A degree in Paradise is above another degree like the distance between the heaven and the earth. Indeed, a servant from the people of Paradise will raise his gaze, and there will flash for him a light that nearly snatches his vision."