Learning to carry on in such a state is something that stays with you. Jennifer Pharr Davis, who in 2011 set the fastest known time for hiking the Appalachian Trail (46 days, 11 hours, and 20 minutes), writes in The Pursuit of Endurance that one of the most important things she’s learned is, “You don’t have to get rid of the pain to move forward. The hurt we experience in life might never fully go away; it could ebb and flow for an eternity. You can make progress and appreciate the times when life isn’t as much of a struggle. And you can pray, and cry, and wrestle through the rest.”