You treat the world knowing it will die, but the quality of your mind as something that doesn't die
"This path does offer a way out. In the meantime, you’re not harming anybody and you’re providing yourself with definite wealth, definite strength, definite treasures — as we often say in Thailand — that last beyond death. In other words, you treat the world around you in full knowledge that it’s going to die, but you treat the quality of your mind as something that doesn’t die. That’s what gives honor to what you’re doing. It’s what makes this a noble path." ~ Thanissaro Bhikkhu "Living Honorably" (Meditations8)