A lady always walks with her head high. A princess never loses her courage and, in fear, looks to the ground. We keep our heads high, high as the clouds, because that's where we are.
However, any rule has its exceptions. There's always the accepted, expected deviation from the norm. My prescription to aid in wonderment: make sure to steal a glance downwards every so often. Don't make it a habit to walk with your head down... But remember to take in the small, beautiful things that happen at your feet.