How do we grow in our comfort zones?

A few years ago, my daughter convinced me to zipline while vacationing in Costa Rica. I never imagined ziplining on a small easy course near my home let alone flying at speeds of 20-25 miles per hour on lines up to 50 feet in the air and 780 feet in length. It wasn't in my comfort zone, so I thought. Our adventure began on horseback, riding up to the top of a mountain. We then headed on a zipline that routed us through trees and across the slopes of a mountain. The view was truly breathtaking. It was scary at [...]