The Void is an odd yet simple place that sets in the minds of the citizens of Tulleric.

Any, depending on who's void it is

The main void has no known history, it has been around for centuries.. Just like the history of our own world, we don't know where it came from or how it got here, we just know the basic nature and the fact that we live in it.

I'm not sure technology would work in the void, there are no phones, or cars or anything. But there are weapons like as guns and such.

Each void has different functions and histories, but they all share the same laws and physics. Each being of a certain void is created to fulfill a purpose and are born within reason, to keep their hosts mentality under control. The ones that are above it all, are the Accoltus. The Accoltus are born to lead the entire persons mentality and their void, keeping things under control and destroying whatever causes harm to it.

Each beings magics depends on what they are. For example if you are a sadness emotion, you could cause flash floods. It all depends what you are, and your magic is mainly meant to help you do what your supposed to do and succeed your purpose.

Demolishment - Because the world is a merciless place, this is unfortunately somewhat common to happen. Demolishment is basically when a persons mentality has been damaged, mostly through emotion-wrecking experiences. This damage causes the persons void to shatter and fall apart, basically like an earthquake if you will, the reason this happens is because as I said, the persons mentality has been damaged so it breaks itself apart to be rebuilt and demands changes to be made as it's being fixed by the Accoltus. This causes struggle, strife, and sometimes death to the void beings in experience.

Passion-Merge: This is another somewhat common thing to happen, when a being of Tulleric falls in love with another and gets together with them, their two voids become one in a way. The two voids belonging to the people go on opposite sides of each other, and another void called "The Relationship" is created between them. It's basically a city-like area where both the persons void-beings can collide and feed the relationship of the two Tullericians by getting to know one another. Before anything though when the relationship is created, everyone else is to stay behind and the Accoltus are to meet up in the middle of this relationship and talk things out, plan how the things will work, agreements and disagreements, etc.. If they come to agree with one another, the relationship is ready to live in, sometimes the Accoltus will gain a friendship between or even marriage, but if enemies are made it is important to avoid combat. If it's a neutral, then the relationship is still created as a test, but if things don't work out then it's demolished. If things don't go as planned, the relationship is demolished, if it's forced to work even after the disagreements, it can cause damage to both the voids in question, maybe even war.