How did Frank Lloyd Wright see windows?

Frank Lloyd Wright's view of windows was unique, and the sources provide insights into his architectural philosophy:

• Windows as "look-outs": Wright designed windows to "see" specific things or views, where the exterior setting informs the architecture [1]. The windows are thus more than just openings; they are carefully positioned "look-outs" [1].
• Enhancing creativity: Wright believed creativity could be enhanced by looking out a window [2].
• Placement hints at programming: The placement of windows on the exterior hints at the building's programming [2].
• Masking unsightly views: In commercial buildings, Wright concealed distracting views, such as smokestacks, by masking them with materials like a mesh of Pyrex tubes [3]. This is a subtle self-reference to the activity inside the building, such as chemistry [3].
• Windows versus walls: One source mentions a bathroom window embedded in a wall notch, which was there only to let light in, functioning as a wall skylight [4].
• Synergistic with nature: Wright's innovative designs sought to make living spaces synergistic with nature [5].
• Nooks and alcoves: Many parts of Wright's houses are designed as nooks or alcoves, each with a "porthole" of some kind to views in the landscape [2]. These "portholes" offer views of elements like a tree with a treehouse or a river, tilted to capture a specific angle of the sun [2].