Passes equate to activation sessions. Your 1st session using superreading and dipping you will look for answers to your mind probing questions from the beginning of the book to the end. This is a linear approah that most photoreader use. If you don't quite feel that you have gotten what you need from the book, you start another activation session using superreading and dipping from the beginning of the book to the end to find more answers to your mind probing questions. You might generate from your previous activation session new mind probing question. If you feel satisfied that you've gotten all that you need from the two activation passes then you are finished, If you still are not satisfied, you start another activation session with mind probing question and you superread and dip. You keep re-doing this until you're satisfied and the book as we say "has gelled". This is what is meant by "Passes" or another terminology you may hear is "Layering" which means the same thing. Always remember that "comprehension comes in layers".
