Talk:Oro/@comment-99.226.86.109-20151222214209/@comment-27117868-20161015145837

I think Oro is the sentience buried within the Warframes. Several times we've seen the Warframes move at their own volition, and not just sporadically, but with purpose.

SPOILER

Like when the Stalker tried to kill the Operator at the end of The Second Dream, and the Warframe that was gutted with War saved the Operator independently after transference was broken. I find it likely that the Oro is the "soul" of the Warframes.