Blurred of fuzzy is fine. It's the mind that reads not the eyes and what your eyes are capable of seeing when you normally read they are still capable of seeing althought the mind is deliberately focusing beyond the book so that the non-conscious mind is doing the reading.
Just keep the focus behind the book and in time you will notice an unusual clarity of the letters of course the problem with that is you will fall into traditional focus when you first notice that. So as a beginner be grateful that the words are fuzzy and know that it is the non-conscious mind doing the reading.
Alex