I'm very much a novice, so I could be wrong, but it seems to me that pain is a necessary element of learning the martial arts. Don't get me wrong; I do think the martial arts in general and aikido in particular can- and should- make us more peaceful people, but this opportunity for peacefulness comes from an understanding of pain and a respect for the capacity to inflict pain. And it seems naive to me to beleve that we can learn these things painlessly.
Once we have these things, we have the unique opportunity to be actively peaceful; it is no act of peace for someone to disdain violence who fears pain and has no capacity to cause it.
For a novice, you say incredibly smart things.