What is a christian view of suffering (as in "eternal suffering") in the afterlife? Does it have any of the same characteristics as mortal suffering? I ask because I've read about discoveries in cognitive neuroscience that point to many parts of what we experience as "self" to have direct causes in physical events in the brain. This includes the subjective experience of continuity of time, being in control of one's actions (free will), being anchored to a body, etc.,. Each of these experiences can be altered by simply affecting a corresponding part of the brain. Likewise, the subjective experiences of pain and suffering are rooted in such physical events, and these can be changed so that a person can not just avoid feeling them, but be "rewired" to receive positive feedback in the brain. Even emotional pain and suffering in the form of stress, guilt, depression, etc., can be found to have similar physical causes. This evidence makes me wonder on what basis could one claim there will be suffering in an afterlife when suffering is a physical phenomena.