https://github.com/davepinch/pinchy.cc/blob/master/content/topics/gaming/games/atari-7800/galaga/galaga-atari-7800.md
To enter these intervening dimensions, human consciousness must focus with such intense coherence that the frequency of the energy pattern which comprises that consciousness (i.e. the brainwave output) can accelerate to the point where the resulting frequency pattern, if displayed on an oscilloscope, would look virtually like a solid line.