" Scrying the wind is very difficult, Tris,” Niko said gently. “It’s like scrying the future. You’re assailed with thousands of images — fragments, really. It drives many who try it insane.” “You learned to scry the future,” Tris pointed out. “And a number of people have informed me they think I am mad,” Niko replied, his voice very dry. "

― Tamora Pierce , Shatterglass (The Circle Opens, #4)