Inside the Outside

I wake up, it's pouring. I'm outside, or am I? I struggle to find any air in this place. I look up to the sky but it's the ground, I stand up, I'm upside down. How can I differentiate this world which I have stumbled upon. Up is not, nor is down. I drink the goblet, it's full, now empty, was it ever filled? I am lost. Find me. Find me....