Musk was walking alone in the darkness without any other soul in sight, but before him where two others. This where unknown's, or to be more specific, the legacy disciples without a higher ranking, thus not famous.
It seemed that they had finally gotten the chance to show of their comprehension abilities, but even so, they where not better than Musk.
Actually comprehension was something that he was clearly proud about. At the moment though it had little help, as this path of darkness seemed to test something more than will. It was the determination of a monk in the path of practice. This was indeed far different from will, and in some cases it would be referred to as the dao heart.