Tired feet, why not knees?

Each day presents us with its own mountains. Today has been a day of unexpected climbing. My feet being physically tired reminds me of the journey my heart takes each day. If only I could live with the faith of a mustard seed, these unexpected climbs would be no more. If only I would quit starting the day on my feet and instead begin on my knees then I could simply say the name of Jesus to these mountains and they would be cast into the sea. But as of this moment, my feet are sadly more tired than my knees.