Anything that's different from your own realm of experience as a human being whether it's driving a car or a boat or using guns anything that separates you from yourself and leads you more towards this character's existence is a big help.
I have been astonished that men could die martyrs for religion - I have shuddered at it. I shudder no more - I could be martyred for my religion - Love is my religion - I could die for that.