To me, architecture starts with the action of defining a space that separates us from nature. It is the statement created by the humans that we are independent from the outside, the concept of «outside» by itself it’s enough proof that we have completely isolated ourselves from the wild. We don’t have to be wet when it rains, we can have light at night, we can be warm in winter because we define our reality with walls.
Nowadays, this limit is being tested by architects, letting some of the nature come into our spaces, blurring the barrier between the inside and the outside. Architects like Mies van der Rohe have dedicated their life to playing with this border and ensuring the comfort of humans while bringing back the wilderness to us, or maybe us to the wilderness.

Bibliography:
–What is architecture? by Mara Diodato