Describir: The theory of proportion in architecture

  ______     ___      _____    _    _     ______     ___     _    _   
 /_   _//   / _ \\   / ____|| | || | ||  /_____//   / _ \\  | \  / || 
 `-| |,-   | / \ || / //---`' | || | ||  `____ `   / //\ \\ |  \/  || 
   | ||    | \_/ || \ \\___   | \\_/ ||  /___//   |  ___  ||| .  . || 
   |_||     \___//   \_____||  \____//   `__ `    |_||  |_|||_|\/|_|| 
   `-`'     `---`     `----`    `---`    /_//     `-`   `-` `-`  `-`  
                                         `-`                          
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`