Understanding fills the gap between our mind and reality. But it still - in fact - we are seperated with our reality. And while separation still exist, our movement still get a chance to turn into chaos.
There is something, that dismise the gap, but I am afraid, it isn't something that we can understand, or explained by merely words. If it can be explained, then understanding would be enough to connect us with the reality.
I don't what you call, a deep understanding? A complete aweress? The supreme consciousness? Or perhaps - God itself.