Turning 100 is a unique and rare moment and should be celebrated very much. I am sure this is a great time for you and all the people around you.
I only wish for joy! May you always have a smile on your face and peace of heart. I wish your year is full of health and happiness.
Enjoy every second with your family, because there's nothing more important than that. I am sure that life holds moments of great happiness for you. Have a great birthday!