The document discusses different types of subliminal messages allegedly found in Jay-Z's music and videos, including hidden images, controversial lyrics, and backmasking. Specifically, it notes images in the "On To The Next One" music video that are thought to be anti-Christian, as well as lyrics from "Empire State of Mind" and "Lucifer" that reference Christianity. It also explains that backmasking is a recording technique where a hidden message is recorded backward to be played forward, and that Jay-Z's song "Lucifer" is thought to include backmasking.