Surah 52. At-Tur, Ayah 25

This symbolic "asking one another about their past lives" is meant to bring out the fact, often stressed in the Qur'an, that man's individual consciousness invariably survives his bodily death, to continue unbroken in the life to come.

 It is assumed that they will ask each other about their lives in the world and what led them to Paradise.

The third-and the highest-stage of Bliss, after individual Bliss and social Bliss, is the satisfaction of looking to the Past without its shadows and realising to the full in the Present the goodness of Allah. See n. 5050. This, again, is shared in mutual converse and confidence.