The holy grail, a wish machine - the key to startup the Great Grail. It is not an omnipotent container, but a replica created to work like a "wish machine" that can bring forth one's own will. The essence of the grails content was a "colorless force", but after the third Grail War, it has been polluted by Angra Mainyu (all the worlds evil) Kingdom Hearts Long ago, people lived in peace, bathed in the warmth of light. Everyone loved the light. Then people began to fight over it. They wanted to keep it for themselves. And darkness was born in their hearts. The darkness spread, swallowing the light and many people's hearts. It covered everything, and the world disappeared. Angra Mainyu (アンリマユ, Anrimayu?). In reality, he was no more than an ordinary villager. A human that was freed from the confines of Order by having his name expelled from the Avesta, The Universal Revelation of Inscribed Creation. One day, he was randomly chosen as the "source of all evil in the world" by his village and was tortured and sacrificed in the following rituals. The villagers believed that from the moment humans are born, there is evil in them. All worlds begin in darkness, and all so end. The heart is no different. Darkness sprouts within it, it grows, consumes it. Such is its nature. In the end, every Heart returns to the darkness whence it came! You see, darkness is the Heart's true essence..." —Ansem, Seeker of Darkness the corruption of the grail gives birth to heaven's fall, the reverse Moon (天の逆月, Ten no Sakazuki?), which is not the grail of heaven (天の杯, Ten no Sakazuki?), but Angra Mainyu, the core Grail. While it is weak compared to the maelstrom of magical energy that is the Einzbern Grail, what it can do is grant wishes. In a way, it is a small but "true" Holy Grail. It is the foundation of the looping world in hollow ataraxia, where it appears as a black moon, hence the name. moon cell In the Fate/Extra universe, the Moon Cell (ムーンセル, Mūn Seru?), also called the Holy Grail, Eye of God, and Divine Automatic Recording Device, is a massive collection of photonic crystals within the moon that comprises a giant supercomputer of sorts. The Moon (月, Tsuki?) is a central motif in a number of TYPE-MOON (producers of fate stay night) works. It is most prevalent in the works involving Vampires, such as Tsukihime and Melty Blood. It is not a planet, but it is still a celestial body that had an Ultimate One known as Type Moon. Within the world of Fate/Extra, it also holds the Moon Cell Automaton The World That Never Was the heart shaped moon is an attempt to create an imitation of kingdom hearts, a central plot point through out the series. (The holy grail, a wish machine - the key to startup the Great Grail. It is not an omnipotent container, but a replica created to work like a "wish machine" that can bring forth one's own will.) xehanort report #10 Just as people have hearts, so do worlds. The same can be said of stars in the night sky. And deep within each world lies a door to its heart. The Heartless desire those hearts. Born out of darkness in people's hearts, they seek to return to a greater heart. Yes that's it. The Heartless come from people's hearts, as does the darkness. Is the core of the world's heart the world of the Heartless? I will pursue the answer there and become all knowing. the true Kingdom hearts was swallowed at the keyblade war and never seen again according to xehanort. like the "reverse moon" grail in fate stay night, it is only a replica or imitation but much like KH it is connected to the moon. unlimited blade works (notice the gears) vanitas's keyblade "void gear"
