The kingdom of heaven generally refers to the religious gods or places where the gods are located, also known as heaven. The kingdom of heaven is a symbol of eternity, happiness and tranquility, which has different meanings and images in different religions and cultures. For example, Christianity believes that the kingdom of heaven is the destination of believers' souls, and Buddhism believes that there is no limit to the sea of suffering, and if you turn back to the shore, you can enter the paradise beyond reincarnation.
Because the meaning of the kingdom of heaven is different in different religions and cultures, the specific explanation needs to be analyzed according to the relevant background.