Ever read through some of Ross Enamait's stuff? He's talking about boxing in particular but those principles can I believe transfer to other disciplines.
In regards to strength training:
In regards to bulking up:
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."