I wonder why is it sot is like this in English?¶

This is a more normal way of expressing the same thing.

I wonder why this its so in English?

you could also say "i wonder why this is so"

Probably,Maybe because the ideal is always an imaginary and unreachable thing, like an illusion that we can only can see while we are not in conscienceous.

Dream in a meaning of ideal is always something personal,; it is deeply attached to our wishes and desires.

AThe word 'dream' has two definitions: things we see when we are sleeping, and something ideal that we want in our lives.

I wonder why is it so in English?

Slightly awkward, but grammatically fine.

Probably, because the ideal is always an imaginary unreachable thing, like an illusion that we only can see while we are cannot in consciencously see.

we would never say "in conscience" in English. You are instead either conscious or unconscious of something.

However, I think, dreams are always related to our lives - one cannot dream about something hone has never seen, think of or read somewhere.

matching of one/he

alternatively with they:

However, I think dreams are always related to our lives - one cannot dream about something that they have never seen, think of or read somewhere.

Dream in a meaning of idealing is always something personal, deeply attached to our wishes and desires.

I am not clear at all what you mean with:
"in a meaning of ideal is"

Thus, this correction may not be correct. The current sentence does not make sense to an English speaker.

I wonder why this it soword has two meanings in English?

sounds smoother

Probably, because the ideal is always an imaginary, unreachable thing, like an illusion that we only can see while we are unot in conscienceous.

You used the wrong word.
"conscience" means "a person's moral sense of right and wrong, viewed as acting as a guide to one's behaviour".
"conscious" means "aware of and responding to one's surroundings".
As I was googling the definitions to copy for you, even Google said that people confuse these two words a lot! :)
But anyway:
not conscious <-> unconscious
(but unconscious sounds nicer)

However, I think, that dreams are always related to our lives - one cannot dream about something he has never seen, thinkought of or read somewhere.

When we sleep, our brain tries to filter out important memories from the past day.

"the past day" sounds like yesterday, even though you are talking about today, so I changed it to "the day"

Dream in a meaning of idWhen examining either of the definitions, it's clear that a drealm is always something personal, and deeply attached to our wishes and desires.

I think this is what you wanted to say?
You can also say:
Whether we have dreams when we sleep or we dream about our ideal life and goals, it is always something personal and deeply attached to our wishes and desires.