First Breath in the Open? but in the void border

A sudden rush... I can breathe? My fingers twitch—actually twitch! The silence is terrifyingly vast, just dots of light scattered across the dark above. I crouch instinctively, my boots scraping against the blue grid beneath me. I reach down and press my palm firmly flat against one of the intersecting glowing grid lines. Solid. It's solid ground, not deep water, not the open mouth of a leviathan. But... what's out there? I freeze, listening to the void, staying absolutely low.