question #1 Sahih Muslim 213b, Book 1, Hadith 423 : What is the significance of the description of the least punishment in Hellfire?

The Messenger of Allah (ﷺ) said: Verily the least suffering for the inhabitants of Fire would be for him who would have two shoes and two laces of Fire (on his feet), and with these would boil his brain as boils the cooking vessel, and he would think that he would not see anyone in a more grievous torment than him, whereas he would be in the least torment.