Post Injuries - What Words of Wisdom Do You Offer to a Martial Artist?

A lot of people who go through injuries, particularly bad ones that keep you out off the mats for a while, it's post injury depression. What words of wisdom would you offer to someone who might be listening right now who is unable to train or dealing with an agging injury and starting to feel depressed about it? "The best thing that you can do is gratitude and live in the present moment"