http://dragonage.wik...er_About_LyriumTo Paxley,
I've seen the transformations. It's a horror to watch your soldiers' faces change, to realize they might not remember you day-to-day; it's a sword in the guts. But the ones who make it through are near invincible.
Feed elfroot to the soldiers hurting, as much as they want. Beyond that, it's just waiting until they stop feeling pain. Remind them they spread the lyrium. It grows at our touch; with the "materials" I've sent, they'll grow enough for a dozen armies. It's proof we're on the right path, that any suffering is worthwhile. Remind them.
Samson
Red lyrium spreads at the touch of a red templar. So it seems it is spread through some kind of magic. I wouldn't rule out that Darkspawn can corrupt lyrium into red lyrium, but this shows that magic is another way to make it spread.
http://dragonage.wik...ry:_The_ProfaneWe who are forgotten, remember,
We clawed at rock until our fingers bled,
We cried out for justice, but were unheard.
Our children wept in hunger,
And so we feasted upon the gods.
Here we wait, in aeons of silence.
We few, we profane.
—Found scrawled on a wall in the lost Revann Thaig by explorer Faruma Helmi, 5:10 Exalted. Unknown author.
Either dwarves, or demons ate lyrium and became profane. The reference to "gods" probably means the titans.
http://dragonage.wik...n_in_Red_LyriumWe are here
We have waited
We have slept
We are sundered
We are crippled
We are polluted
We endure
We wait
We have found the dreams again
We will awaken
This may indicate that those who die due to red lyrium are having their souls sucked into it, which could be the case with dwarves who die and "return to the stone", only they go to regular blue lyrium. This might be what gives titans their consciousness.
Cole states that red templars hear the song behind the door old whispers want opened. Templars recognize the song as different from the song of normal lyrium. Cole also calls the red lyrium's song "angry".
So perhaps red lyrium is part of a tainted titan. And all the souls lost to red lyrium go to it, becoming part of its consciousness.
Another theory that might work with this is that the Maker's curse on the Magisters Sidereal, being magical itself, is picked up by the lyrium and thus transmitted magically. This also explains why it can thin the Veil and help demons manifest in the real world. So the taint travels physically, but the "red" travels magically. Red lyrium creates more of itself through magic. The taint creates more of itself through physical means, and possibly some magical means as well.