This was beyond any experience of mine.
I shall never forget the first time I saw blueberries served on the table.

I had never seen blueberries before, and yet, at the sight of them, there leaped up in my mind memories of dreams wherein I had wandered through swampy land eating my fill of them.

My mother set before me a dish of the berries.

I filled my spoon, but before I raised it to my mouth I knew just how they would taste.

Nor was I disappointed.
It was the same tang that I had tasted a thousand times in my sleep.
Snakes?
Long before I had heard of the existence of snakes, I was tormented by them in my sleep.