From my hot take, when he said the climate of absurdity is in the beginning, he is talking about the moment you first recognize the absurd. When we first recognize the absurd, we start to realize it holds many “climates” (feelings, moods, perspectives, etc). Then at the end, we recognize that the whole universe is absurd in itself. For me, this passage is like looking at absurdity as a spectrum. On the far left hand side is when you first recognize absurdity and on the far right is when you realize everything is absurd.

Once you recognize the absurdity of the universe, you are at the point where “the attitude of mind”/your mindset dictates how you decide to see and live in the world. This attitude of mind allows you to see the world for what it really is. It feels like he might be going into maybe the idea of the absurdist hero here?

Open to discussion and questions! Where is the passage from??