best novel where mc travel various cultivation world no extraordinary strength every thing is under control and logically correct and comparison between cultivation system between different world is very good very comparison between cultivation realm is beautiful and at end author truly portray what is immortal author actually found a way to produce spiritual energy by himself and not depend on heaven and earth .mc cultivate a whole three thousand universe in his body which is very good also produces different cultivation system in different world . It is peaceful cultivation journey with many twist and turn . good luck please produce another type like this