Binding is an advanced magickal technique that is too often played around with by people who simply don't know any better.
A Binding is a spell that blocks or restricts the flow of energy. Think of a binding as building a dam. There are many constructive uses for dams, but if they aren't built properly, you can create major destructive potential.
Bindings are commonly used to stop or prevent the actions of another person. By their very nature, Binding spells prohibit the free will of another. Therefore, they violate the Wiccan Rede, and should only be considered as an extreme and final form of self defense. Binding spells are not the answer to petty animosities between people... in fact, that is when they are most likely to backfire.
A Binding is designed to block, bind, or otherwise restrict the flow of energy of another person. In order to do this, the magician must link their personal energies to the person they wish to bind. Thus, the magician becomes equally bound. Therefore, if the magician is in the least bit suspect in their motives for building this “dam”, it will break and flood the magician with the after-affects.
This type of magick is strongly discouraged for the potential negative consequences associated with it. Not recommended until you've been working with energy for a long time, if ever.
~Flame RavenHawk