A burial system comprising: one or more rectangular burial spaces, each confined by grave walls generated by cutting with a filament from a block of foamed polystyrene or other expanded polystyrene substance, thereby enabling reducing weight of burial elements of the burial system by at least 90% in comparison to concrete burial elements (the prior art), and providing ease of construction effort in comparison to concrete burial systems. The innovative saturated burial system is supposed to sustain for hundreds of years. The saturated burial system may be applied on a single burial arrangement, as well as on a double burial arrangement, and a multi-story crypt burial arrangement.