It's not the animation itself that does anything magical, but the afterimage (I think that's what you would call it?) your eye produces after you stare at the dot for long enough. The black bar is just a countdown timer for the impatient.

But try to maintain laser focus on the central dot, not letting your eyes move or blink if you can help it. Once the black bar depletes, the circle should start shrinking, and around its periphery (like an eclipse) should be some incredibly vivid, super saturated colors.