What does a white elephant signify?

A white elephant is a rare and unusual possession that is more trouble or expense than it is worth. It is a term often used to describe something that is difficult or expensive to maintain, or that has become a burden. The term is derived from the white elephants of Southeast Asia, which were considered sacred and were often kept by kings as a symbol of wealth and power. However, these animals were also very expensive to keep and care for, and so the term "white elephant" came to be used to refer to something that is more of a burden than a benefit.