Nine in the second place means

Treading a smooth, level course.

The perseverance of a dark man brings good fortune.

The situation of a lonely sage is indicated here. He remains withdrawn from the bustle of life, seeks nothing, asks nothing of anyone, and is not dazzled by enticing goals. He is true to himself and travels through life unassailed, on a level road. Since he is content and does not challenge fate, he remains free of entanglements.