How come we all observe the same general illusion?

Because our sensory apparatus,

and all of our senses are very much the same .... and dialed in pretty similarly as well.

Illusions are created by something, and observed by something.

So that which is creating the illusion is not an illusion,

and that which is observing is not an illusion.

What part is illusion?

Because hopefully we will be able to one day be able to transcend this blood sweat and tears that we now live in and become one with it. Then we can all be at peace and understand that it is not an illusion but it is the reality and we were living the illusion

We don't. We perceive our own subjective illusion. 100 people can observe the same objective thing, but everyone imposes their own subjective meaning upon it, therefore it is not technically the same "thing" from person to person. From your perspective, your shoes are 'your' shoes, and have a particular meaning to you. From someone else's perspective your shoes are just like anyone else's , but we impose our own subjective judgments upon them that differ from one person to the next.

Inherently, everything in existence just is what it is, without labels and descriptions. Generally, we all are aware of the 'sun', but our perception is only the degree to which we know 'about' it.

Our star,the Sun,actually gives off heat.It's not an illusion!

We are all one mind in the mind of the all. We are that mind. The mind of the entire intelligent universe. The more we observe it, the more we come to know our place in it. We get to enjoy it from every awareness in every dimension in everytime. We are the magic and the ignorance of the magic. We are all there is. one in the mind of the all.

Yeah, I almost forgot,

Eye Am Eternal

Eye Am You.

Your assumption of illusion is unfounded and premature, biased!

There is only One (unchanging, ALL inclusive) Reality!

Every moment is a unique Perspective of it!

Either it's real or its something Jungian like the collective unconscious.

Actually, I don't observe any of that stuff. Where is it? Are you hallucinating?

Because it is not an illusion, it is reality.