Unreal website for online dreaming

A website that lets you dream online, with a simple interface, but requires JAVA support. Open the website, just fill in a word in the input box, then click "Submit", then there will be a constantly swinging dot in the prompt: "Please wait, you are asleep..." Next, some abstract, hazy pictures appear, which are related to the words you just typed, and are constantly changing, like your mind is flowing, not to mention a bit of a dream feeling.