Although she was mentally an adult and didn't put much stock in things like fortune-telling, Weave of Fate was her own magical equipment, and she couldn't help but make some associations.
The current crisis in Fangting City, the lurking threat of Black Ash Dawn and Claw Mark, the pressure to protect the children, the obstacles to avenging An Ya, as well as the warnings from her magical equipment—all were stimulating Emerald Sparrow's nerves, telling her "you must have power now."
And to wrest back that power, between the two previous options—White Wolf and Mother Green—at least Mother Green was slightly more trustworthy than White Wolf. Both options looked bad, but she was forced to choose the lesser of two evils.
"To tell the truth, I still can't quite understand, because I'm really worried, sister."