The One and the Three

[Tar-Palantir]

I believe the One Ring itself gives us a good enough answer. It is established that Sauron had a part in the creation of the Three, the Seven, and the Nine. Meaning either his taint was on them, or he knew how to taint them. And that I'm sure was his purpose in creating the One Ring, or one of a few purposes with ultimate goal of domination.

One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the Darkness bind them

I think 'bind them' are the most important words. Once bound then obviously their fates are intertwined. But as far as what method of incantation was used for the binding (which is what it sounds like you want [img]smilies/smile.gif[/img] ) I think it would be simpler to discuss how Gandalf blows blue, red, green, etc. smoke rings - I don't believe there is a satisfactory answer to either question except to say that they both have their fair share of Arcane knowledge.