1. When we are asleep, we're half-vigilant.Is there any way so we can be completely vigilant in our dreams and do acts wisely?
Yes, there is. We have a way of controlling our dreams (called lucid dreams) and making our own descisions then.
2.Is there any way so we can break into someone's dream?
"Breaking into someone's dream", I don't think so. You can enter someone dream, but I don't think you can break into a current one.
3.Is there any way to share a dream and have common dream?
Yes. There is a method, I think, called dream walking. As I said before, you can enter someone's dream, and invite them to spend that short amount of time with you.
4.Is there any way so we could sleep or make someone sleep very quick (using magic) ?
No, there isn't.
5.Is there any way to have a real imagination (like dreams), I mean make our own dreams and chose what we'd like to happen ?
Yes, this process is called Lucid dreaming. This is where you are able to control you dreams, and do what you would like to do.
6.Is there any way so we can see a real dream ??? I mean be in a place we have never gone (like what's happening right now in another place) or be in a time we never was (like 1000 years ago) ???
I don't fully understand this question. You can't be in another physical place while you are sleeping, and nor can you go to another place "life 1000 years ago". There are other methods to what you would think 1000 years ago looked like. Astral projection, which isn't directly related to lucid dreaming, is where you are able to do anything on the Astral realm that you can't on the Physical.
But that's another topic.
Hope this helped!