Purgatory is a concept in some religious beliefs, particularly in Catholicism, referring to a state or place where souls undergo purification before entering Heaven. It is seen as a temporary condition for those who have died in a state of grace but still need to atone for minor sins or imperfections. In purgatory, souls experience a process of cleansing, which may involve suffering or waiting. This belief emphasizes the importance of repentance and the possibility of redemption, allowing individuals to prepare for eternal life with God. The idea encourages the living to pray for the souls in purgatory to aid their journey.