The jar dug in the ground says auspicious birthday on the outside. Is it an urn?

The jar dug in the ground says auspicious birthday on the outside, usually an urn. Because in funeral crafts, generally only the jar of the urn will write the words auspicious birthday on the outside. This kind of jar is usually buried underground by family after death. Most jars are made of ceramic materials, and some are made of stone.