"I have internalized what I have had throughout my life, which is to demand myself the maximum, and right now what I really hope is to be able not to do that, not to demand the maximum, to accept that things are going to be very difficult at the beginning and to give myself the necessary time and forgive myself if things go wrong at the beginning, which is a very big possibility."
(I read the quote in Spanish, and trust me it's more elegant.) Typical Rafa being philosophical...not just underselling his chances, which he has done in the past, but telling himself that he can't go "all out," at first, which goes against his nature.
Who knows what he has left to give, and how the body holds up, but I expect he'll make a heroic last push.