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Yellowcard – Illuminate Lyrics 11 years ago
As we get warm, ice will get thin
We'll become ghosts, together again
As we ascend, air will get thin
We'll become ghosts, together again
_

In a eerie vibe, Ryan is obviously venting frustration at the overall concept of "this is why we can't ever have nice things". The "orchestral" finale of the song obviously resumes the whole concept behind Illuminate.
Which makes total sense if you consider Ryan's motives behind the building of the whole album.

getting warm and cozy makes the rotten ice thin underneath the feet: result is falling and freezing/drowning having to "start over" again.
ascending is considered something romantic and enriching: the result is choking for asphyxiation due to lack of oxygen at high altitudes.

The dualism of continuing hope-despair-hope (becoming ghosts, but at least we're down in it together) streak is a main theme of the whole record and the way you feel listening to it (hopeful or frustrated hopeless) really depends on your mood swing of the day.
I believe Ryan meant the same considering that even he's unsure about it with the line «Do you picture me, what do you see?»

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