First-grade was the highest, and only monarch Sparrow and true immortals of Grotto-heaven could reach first-grade temporarily. Fifth-grade and above were true immortals, seventh-grade were Soul Remnants, eighth-grade were nascent Soul Remnants, and ninth-grade were golden core.
The broken soul referred to the incomplete soul of the true spirit. If the true spirit was powerful, it could enter the map and create a ghost body, enjoy incense, and use it to improve itself. It was true that the map of ghosts and gods was an important treasure of the heaven.
The map of ghosts and gods was still being nurtured by the incense, so it could only summon ghosts of the first and seventh rank. To summon ghosts and gods of the first rank, one could only use nine-patterned Jade coins. One Jade coin could be used once, and three Jade coins could be used for six hours.