It's powerful, it's moving, and quite frankly whether you love or hate the show, it makes a lot of Goddamn sense. What more can one add? Sure we rarely find ourselves in life or death situations like in the show, and thank God for that. But perhaps that's what the line was alluding too. Such moments, such times, can never be truly foreseen. They come when we least expect it because frankly, we don't, won't and are too scared to even fathom those situations.
Meredith: Did you say it? 'I love you. I don't ever want to live without you. You changed my life.' Did you say it? Make a plan. Set a goal. Work toward it, but every now and then, look around; Drink it in 'cause this is it. It might all be gone tomorrow.
- source wikiquote.org
I once argued with a friend about letting such moments pass, or whether or not we should ever worry about what if, what could've been. While its easy to say, heck maybe even advisable never to ask ourselves that, never to look back on those things, can we truly, sincerely, and without doubt do so?
While the jury is out on which of us is correct, I'll be damned if I don't at least try something, make a plan, or set a goal. Because like what Dr. Grey said, it might all be gone tomorrow.