to answer your question, ive only had a few lucid dreams, i can tell the difference between an obe , lucid dream, and dream ... i am 100% sure that i have read in normal dreams...i am 100% sure that i dont just "think" ive read in dreams, that i actually see a word and i read it......usually in a dream ill read a lot of words , and they will just flow , and sometimes ill realize im reading and the words will stop flowing...which sucks....but i have had dreams where the words morph into some weird symbol or the words are just plain unreadable, but ive had MORE dreams where i read perfectly...so i dont know why this is or what causes being able to read normally in dreams, and then sometimes why the words are unreadable...