Six in the second place means

Hold to him inwardly.

Perseverance brings good fortune.

If a person responds perseveringly and in the right way to the behests from above that summon him to action, his relations with others are intrinsic and he does not lose himself. But if a man seeks association with others as if he were an obsequious office hunter, he throws himself away. He does not follow the path of the superior man, who never loses his dignity.