Over the centuries, simple caves began to resemble free-standing buildings, needing to be formally designed and requiring highly skilled artisans and craftsmen to complete. These artisans had not forgotten their timber roots and imitated the nuances of a wooden structure and the wood grain in working with stone.
Over time, simple caves evolved into freestanding structures requiring formal design and skilled artisans to complete them. These artisans retained their timber heritage and incorporated wood's characteristics into stonework, mimicking the nuances of a wooden structure and its grain patterns.