It means that links, subject, moor or League. You want to tell leagues, mooring, mooring, ligatures. Attachment, link, link, union, yoke. It can also mean obstacle, impediment.
The term bondage is polysemous; that is, has three meanings. 1. The action of attaching something. 2. The thing already attached. And 3. In its connotation is what in a figurative way us League, joins us to something or someone. All that shape our world family, sentimental, geographical, circumstantial, etc. and it prevents us from break with what we have and take another life or adventure.