"It's very, very difficult to imagine something like this," Nadal told reporters. "But here we are today, and very happy about all what happened the last month, especially last three weeks. I don't have anything to lose after seven months. I did much more than what I dreamed.
"I was very nervous at the end of the match to close the match and was lucky that my serve worked amazing in the last game in important moments.
"Victories like today, like the other day, helps you a lot for the confidence and to remember all the things that you have to do in every moment."
Nadal will face Juan Martin del Potro in the final on Sunday.