Every breakthrough of any significance I have made came to me in a flash. There was no logical trail of thought. No words in my head. Mostly I was just starring into the void absent minded. I think I was letting go of my ego so my being could just take over my body. And then I could see it clear. Suddenly. See it. Not hear it or think it. See it.

Words only came later when i was trying to see how to remember that, or convey it to others.

Osho explains it like this.

And then the explosion. In a moment, everything was transformed. The question had dropped.
The answer had come from some unknown dimension. Truth is attained through a sudden explosion, not gradually.
It cannot be compelled to appear. It comes.