What does enduring suffering mean?

Spirits suffer the taunts and reproaches of those whom they have injured whilst living, their thoughts though unconscious to themselves mingle with the thoughts of others whom they have injured—they smite them with violence and rebound from off them with the most indescribable torment. After suffering thus for years, exposed to every species of remorse of conscience and torment from those who are still living, spirits then pass through the most loathsome darkness, amidst the yells, screams and howlings of myriads of beings, who appear occupied in inflicting torture and torment upon each other, passing with the velocity of whirlwinds around the atmosphere of the globe, each enduring sufferings impossible to be described at the hands of those whom they have injured in life, who departed before and after them—all inflicting and all receiving the most horrible torture—all accusing and all being accused—all empowered to retaliate, but none alleviating their sufferings thereby in the least.