The Pieta is a beautiful sculpture. Mary holding Jesus, to me reflects the unconditional love of a mother for their child. 

I agree that the detailed work accurately reflects the clothing draping how it would naturally. I amazed that it only took 2 years to created out of one block of marble. The precision and skill to work on one slab of marble of that size without chipping or breaking it is incredible. Do you know what kind of tools were used for carving?