Difference and repetition

The book of difference and repetition Gilles Deleuze Arab Organization for Translation .Contains a concept of difference more than it is just difference between two things. And it is also not just a conceptual difference, so should one go to an infinite (theological) difference or should one pay attention to a reason ? "Sensory" (physical)?? Then, according to what conditions does a pure concept of difference form? And a concept of repetition contains more than just repeating the same thing or the same element, for things and elements imply a deeper repetition, a rhythmic repetition, so does art - but also thought - seek this contradictory repetition (Kierkegaard, Nietzsche, Péguy)? What luck is there for a concept: pure difference, and deep repetition, to meet? And do they coincide?