What is Bondage?
Does anyone know?
When I pronounce this word, admitted that my pronunciation is correct, I have never found anyone who understands on the fly what it is, they almost always ask me, "What is it?".

The word Bondage is a series of practices related to the art of erotic tied up.
In practical there are people who take pleasure to tie up someone and others that feel pleasure being tied up, this set of practices takes the name of Bondage.

Obviously it is not quite that simple because even among Bondager (those who practice it) there are many differences and facets that could fill pages and pages of text.
On why to tie or be tied you feel pleasure I can not give a full explanation much less I can reduce the analysis in a few lines, what I know for certain is that this "behavior" is innate and spontaneous and can fit within the normal relationships sexual or even be totally external to that sphere.

In fact, besides "sexual" Bondage can also be of the "Game" and "Artistic".

Artistic Bondage
Is not related to the scope sexual except indirectly, is a visual art, it is to tied up a person (or even more than one) so as to compose a picture or an overview pleasing, one can for example create a web of ropes and tied over it a model, or you can play with the position of the body that the ropes can force to assume, for example, the breast bondage surrounding it is practiced at the base, the breasts so tight (but not too much) tend to swell and rope of the right color makes them stand out on the body.

The Game
Even the simple game is not necessarily related to sex, you can practice Bondage, for example, as a challenge, I tied up you and see how long it takes to free yourself.
Or you can create a situation that happens on movies for example simulating such a kidnapping or playing secret agents, etc..

Healthy, safe and consensual
For those, like me, practice Bondage these are the golden rules in any situation you are you should always respect them.
Healthy, think of your health, do not block air circulation with bindings too tight in the wrong places or kept them for too long and keep everything clean, for example if you go into a forest to tie up a nude model for artistic phots avoid to put the ropes to the dirty ground and then on her body.
Sure, avoid all situations that can be dangerous like put a rope around the neck or put a bondagette  in a pool full of water.
Avoid making "games" potentially dangerous if you are drunk or worse.

Consensual, at the base these games there will be the consent of both, especially against those who are tied must always respect the limits that were agreed and never go over because "it is more beautiful," the relationship is also built on trust.

With this I don't think that I have exhausted the subject, but I hope I have provided a concept base.