The Age of Miracles: Embracing the New Midlife - Marianne Williamson.

"In our ability to rethink our lives lies our greatest power to change them. What we have called “middle age” need not be seen as a turning point toward death. It can be viewed as a magical turning point toward life as we’ve never known it, if we allow ourselves the power of an independent imagination—thought-forms that don’t flow in a perfunctory manner from ancient assumptions merely handed down to us, but rather flower into new archetypal images of a humanity just getting started at 45 or 50.

What we’ve learned by that time, from both our failures as well as our successes, tends to have humbled us into purity. When we were young, we had energy but we were clueless about what to do with it. Today, we have less energy, perhaps, but we have far more understanding of what each breath of life is for. And now at last, we have a destiny to fulfill—not a destiny of a life that’s simply over, but rather a destiny of a life that is finally truly lived.

Midlife is not a crisis; it’s a time of rebirth. It’s not a time to accept your death; it’s a time to accept your life—and to finally, truly live it, as you and you alone know deep in your heart it was meant to be lived."