From Sakyong Mipham's Running with the Mind of Meditation, Chapter 11, talking about getting started running (or any other endeavor):
During this phase of the tiger, the best advice that I received was to be gentle. We are not talking up running with the mind of meditation to give ourselves a hard time. A Shambhala slogan associated with the tiger is "Friendly to Yourself." A good friend has our best intentions in mind. Friends don't yell at us, "You're a lousy meditator!" or "You can't run!" They encourage us, reminding us why we got into running or meditation in the first place. They help us stick with it. Most important, a friend wants us to do what is best for our progress. Therefore being friendly to yourself means offering yourself a little leeway, honesty, and humor. A combination of mindfulness and friendliness is ideal.
^z - 2015-01-12