The reconstruction work was essentially based on three guiding principles: (1) George Bähr’s Frauenkirche should be rebuilt using its original structural substance to the largest extent possible in accordance with the original construction plans. This should be done (2) with the aid of modern technology as well as the theories and methods of structural engineering and physics valid today, while (3) giving due consideration to the things that are needed for the vibrant usage of the building in the 21^st century. 
 
The use of the building’s original substance to as large an extent as possible will make the fate of the destruction of the rebuilt Frauenkirche visibly evident for many years to come. The dark colouring of the old stones and the dimensional differences in the joint areas between the new and old masonry resemble the scars of healed wounds. In this way, the Frauenkirche will testify to the history of its destruction in the future too. At the same time, however, it is testimony to the overcoming of enmity and a sign of hope and reconciliation.