Don't worry about yourself, but those that matter. And they will take care of worrying about you just like we took care of Fluffy. A second thing I want us to think about are changes. You know that everything has its time to grow and be strong and its time to be weak and dependent. All things on this earth are subject to change.
Babies are weak and dependent, so are children and old people.
People like Mommy and me are strong and able to make many things and take care of those who are weaker and depend on us, like you and Arrow and Fluffy. But a time will come when we will be weak and dependent, too. The thing is that no matter whether you are weak or strong, whether you're dependent or not your life is important and very precious. It is not fashionable in our modern world to admit to being weak or dependent, but someday, sometime, somewhere all of us will be, just as our Fluffy was, always dependent on us especially at the end of her life. But being dependent does not mean you are unimportant.