This text depicts locations of these 3 worlds*, samsara (สังสารวัฎ - การเวียนว่ายตายเกิด) - rebirth of all beings in these 3 worlds where is the center called Mount Sumeru, etc. This religious literary work has a great influence on Thai art, literature, beliefs, mural paintings, the architecture of temples, palaces, crematorium, etc.
* 3 worlds - roughly: นรก - hell, สวรรค์ – heavens, พรหมโลก – brahma worlds