Strictly speaking, another Great Thousand World chapter, Yama World, serves as a backdrop existing in the world, and the possibility of Apostles successfully reaching it is extremely low.
The reincarnation plan of Yama God, including all three divine artifacts, is under the control of the Evil God. The Evil God would not allow Apostles to travel to Yama World, let alone use the Glazed Karma Fire Lotus for cultivating reincarnation.
Because the fundamental purpose of the Evil God is to have Apostles merge with the Glazed Karma Fire Lotus and feign death, completing the final event, and ultimately allowing the souls following the Apostles to enter the Library.
In the situation where the Evil God masters the situation, even if the Apostles do not have cheats like the Beginning of the Holy Spirit, the Evil God will in the end find ways to "die" at the hands of the Apostles, using this to invade the Library through the final event.
