WWW: Comfort zone

Like everything, there's a pain period when you step out of your comfort zone. And just when it seems toughest, and you most want to give up (because it's too much time/work/energy, because you don't understand it, because you don't trust it), if you push through that moment, immediately afterward you break free and it becomes a habit that you feel you've been doing all your life. 

                                                                       - Neil Strauss 

                                                                                 (in: The 4 Hour Body)