In 1952, Dr. F. John Lewis performed the first successful open-heart surgery using hypothermia.

 By inducing a hypothermic state, the surgical team created a window of several minutes to close a hole in the heart of a five-year-old girl. That one surgery changed the entire course of human history. But as they watched her tiny heart, desperate for it to beat again, it could have gone either way. All they could do was hope. 

When you encounter a new beginning, there's no announcement on a loudspeaker. 

Blink and you could miss it. 

Or worse, ignore it. 

New beginnings can be scary.

 But they can also be deeply fulfilling. 

So let go, and dive in.