Do you ever just go for a ride or a walk with no purpose?  No destination?  No set duration?  Or are you always driven?  What if your only purpose in going out is to be?  What if your only purpose is to enjoy the actual action of riding or walking?  It may not be possible to do something without a purpose, for everything starts with intention, but try it … this doing something for the sheer enjoyment of it.  Focus on that joy, on that pleasure as you are doing it and see how that changes things for you.