Min Hong remembered what his grandfather, Min Tian had always told him. "Always put it at the back of your mind that, there will always be a higher existence or realm to the one which you know exists."
With this thought always in mind, it prevented Min Hong from ever underestimating others and to have an open mind. To him, this would ensure that he rarely get surprised or caught off-guard, no matter the situation he found himself.
So, even though Little Wu and majority of the experts from his ancient world believed that the Dao Realm was a myth, Min Hong became determined to cultivate to the highest peak and find out for himself if it was truly a myth or not.
But since that time was still ages away from now, he decided not to dwell on the matter again. Thus, he proceeded with his next question.