How do you thank people for saving your life when you didn't want to be alive? and even still aren't 100% sure that you are thankful for it?
Is a dinner enough?
On that point, three thoughts: - You thank them in your heart and prayers for their wanting you to stay alive. - Search your heart and I'll bet the answer is that you are "thankful for it." - A dinner celebrating them, you, the future and life should be more than enough. Go for it. Enjoy.
Gardener
"My soul, be satisfied with flowers, With fruit, with weeds even; but gather them In the one garden you may call your own." Cyrano deBergerac