When we are children, we feel like every moment is the most important moment to ever happen in our lives.
We perceive every experience as if it is our only opportunity to ever have that experience.
We do not want to miss anything because we have this idea that whatever is happening will never happen again.
And we are right.
Every moment, every experience, and every interaction we have is the last one of its kind.
Once this moment is gone, it is gone forever.
Life will never be exactly like it is right now ever again.
You will never be the you that you are right now ever again.
In every breath you breathe and every moment that passes, the world is changed forever and you are changed along with it.
Behave accordingly.