Six at the top, being yielding and compliant, dwells at the culmination of Following, taking following to its utmost. 'Binding and tying it' means following pushed to the extreme, as if seized, restrained, and bound fast before complying.
'Fastening it' means further binding and securing it, indicating that following is solidified to such an extent. 'The king avails himself of this for offering sacrifice at the Western Mountain' shows following at its utmost like this.
Formerly, King Tai used this Dao to make his royal enterprise prosper at the Western Mountain. When King Tai fled the disaster of the Di barbarians, leaving Bin and coming to Qi, the old and young of Bin supported one another to follow him as if flocking to a market.
Indeed, the following in the people's hearts was so firmly bound. Through this, he was able to make his royal enterprise flourish at the Western Mountain—the Western Mountain is Mount Qi, where the royal cause of Zhou truly arose.
Dwelling at the culmination of Following is indeed an excess; yet when applied to winning the people's allegiance and firmly following goodness, it is virtuous. Applied to other things, it would be excessive. The Image says: 'Binding and tying it; at the top, one is exhausted.'
Following so firmly that it resembles binding, tying, and securing denotes the exhaustion of the way of following.