Seeing in person the very thin line between life and death is frightening. It is very good that no one knows when will the cold death come at your door. And if you have opportunity to meet and talk with people that were in that thin line you will see how they value every day and every opportunity to share that day with the ones that they love.
Value every second of the life and be whoever you want because tomorrow may be late. Tell your loved ones that you love them. Tell them often.
Cherish the life and live happily.