FORM FOLLOWS FUNCTION and FUNCTIONS FOLLOWS FORM

According to the internet research, Form follows function is a principle associated with modern architecture and industrial design in the 20th century. This principle is main concern on the shape of the building based upon it's function.

Through my understanding, Form Follows Function meaning, focus more on the form or the shape of the building based on it's function,for an example: form is the layout of a design, the layout which can make people feel relax easy and simple or stress if too pack and function is the purpose of the design that you wish to bring out. A "save water campaign poster" the form is arranging nicely and tidy, and this automatically can bring out the 'function(message)' easily to the audience. Overall, forms without function are just nothing.