Liu Bowen is blind?

We all call him the blind man who bravely killed the enemy. In ancient times, fortune tellers revealed secrets. Generally, there is a cup in the cup. This so-called cup means retribution. For example, people born at that time had no life to rely on, so they did fortune telling because they were blind, so they were not afraid. But Liu Bowen is not blind, oh, Zhu Yuanzhang's strategist.