تعریف و معنای "[fall] between two stools"

What is the origin of the idiom "fall between two stools" and when to use it?

The origin of the idiom "fall between two stools" can be traced back to the medieval times when stools were commonly used as seating. The phrase likely originated from the physical act of attempting to sit on two stools placed apart, which would result in a person losing balance and falling to the ground. It is commonly used in discussions about decision-making, personal choices, and strategies that require a clear direction or commitment.