absolutely nothing stays the same. Really experiencing the impermanent nature of all phenomena on an unmistakable, experiential level can deeply inform your attitudes, your decisions, and the way you live your life.
I've always loved this: One day Alice came to a fork in the road and saw a Cheshire cat in a tree. "Which road do I take?" she asked. "Where do you want to go?" was his response. "I don't know," Alice answered. "Then," said the cat, "It doesn't matter.