What is Hester's real torture in Hester at her needle?

In "Hester at her Needle," Hester's real torture is the isolation and rejection she faces from society due to her scarlet letter, which symbolizes her sin of adultery. She is forced to bear the weight of this public shame and wear the letter "A" as a constant reminder of her transgression. This social ostracism causes Hester emotional and psychological anguish, adding to her suffering.