Words evolve in definition over the centuries, as well as from one path in life to another. The word cave is a case in point. For mediums, the word originates as boveda (BO-vay-dah). The boveda consists of a grouping of glass goblets representing the spiritual quadrant of each medium. Boveda can also mean hidden treasure box. Indeed, this spiritual cave is a sanctuary from which our entities whisper their messages to us.