In this clip Jamie has leukemia and has stopped responding to treatment. She and her boyfriend Landen are faced with the fact that she is going to die. Even though they know this they try to live their lives together to the fullest, which leads Landen to ask her to marry him.
This scene displays the reaction that many humans have, which is to fulfill all their dreams before they die; To see their miracles come true.
In this movie Jamie had a list of things she wanted to see and accomplish before she died. With the help from Landen she was able to live out all of her dreams. Landen shows how many people would react if they find out a love one is going to die.