ferocious.

olderol also falderal n.
1. Foolishness; nonsense.

rubicon n.
1. A limit that when passed or exceeded permits of no return and typically results in irrevocable commitment.

vicissitude n.
1. a. A change or variation.
b. The quality of being changeable; mutability.
2. One of the sudden or unexpected changes or shifts often encountered in one's life, activities, or surroundings. Often used in the plural. See Synonyms: difficulty.

Rick Whitaker wrote that his best and worst times were almost simultaneous: that when he was living full-out with real ferocity he was also suffering from a crisis of hopelessness, wildly alive and nearly dead at the same time. But this kind of ferocity is a prison. There's no freedom in frantically living against the hopeless future bulging toward you. Instead. I think there's a wiser ferocity, propelled not by sheer force but by awareness. Intention. (I still call this ferocity: wisdom takes tenacity to turn into action.)

Wise ferocity doesn't wildly resist. It allows what is to be as it is. It goes where good sense sends it, like water to a valley. And one of life's best gifts is its endless mutability. What doesn't work can change, can always change. Following the path of these little vicissitudes reveals such unexpected blessings. While blind struggling breeds despair, giving in, surprisingly, can turn hopelessness completely on its head.