A fear of falling toward the sky. Its root may be a fear of isolation, or isolophobia. This phobia may extend to a fear of air travel, a fear of looking toward the sky, or a fear of being surrounded by the sky's reflection. In worse cases it may extend to a fear of going outside.
Evrae looks toward the sky. "Oof" he announces as if losing his breath, while quickly looking down. "What's wrong?" his friend Gemini asks. "I have Casadastraphobia." he responds. Gemini eyes him curiously "What was that?." He looks up at her "Oh, it's a fear of falling toward the sky. Sorry, I just get a little bugged out when I look up every now, and then."