When considered in order, it's likely that the first seven trials of the Sea God inheritance were meant to test whether one could free themselves from the binding of the seven emotions. Yes, that must be it.
Having realized this, Tang San's mind suddenly became enlightened, and even the excruciating pain emanating from his right leg—as his Bluesilver Emperor right leg bone began to separate—couldn't disturb his inner epiphany.
If the Sea God could sense the change within Tang San's heart at that moment, he would undoubtedly be greatly consoled. Because, if the heart of the Sea God was present, the hint to Tang San would have been the Seven Emotions assessment. Originally, the Sea God inheritance was supposed to test the six desires, corresponding to the six soul bones of a Soul Master. But Tang San was an exception; owning the attached soul bone, the Eight-Spider Spear, he had seven soul bones, which is why the test changed from six desires to seven emotions.
