i love the lava lamp. and i presume rat is making a joke. although they are damnably slow to get going when you first turn them on. and i certainly have better things to do with my time then stare at one. but still they make a great nite lite, and if you're meditating, time isn't that big of a thing. and if you only need enough light to not stumble over things, they make a great mood light. (along with uv for the blacklight posters of course)