One thing is certain. While there is life, while there is movement and feeling, you should appreciate it as much as possible, be thankful and make the best of it. Perhaps even treating life as if tomorrow it may be gone altogether, like a cloudy wisp in the sky that will be blown away before you realize it. Appreciate it while it is there, notice it while it is changing, and accept it when it is gone forever and forever. A wisp of a smile becomes no more, a something that misleads or deludes, an illusion outside of time.