Phallus shrines are believed to have special properties, or their resident spirits are believed to have special powers to redress specific problems. A noteworthy example is the shrine of Chao Mae Tuptim, a female deity considered to reside in a venerable banyan tree in Nai Lert Park, Bangkok.

Chao Mae Tuptim has the power to induce fertility, and many young women seeking to become pregnant visit the shrine, leaving presents of flowers and incense, as well as the less common offering of wooden phalluses of all sizes, from a few inches long to giant representations up to 3 metres long.