First she goes/falls into a deep trance, and then the spirit voices start to speak through her. 首先，她陷入深度昏睡状态，然后神灵开始通过她说话。
When a hypnotist puts you in(to) a trance, you no longer have conscious control of yourself. 当催眠师使你陷入催眠状态后，你就不能再清醒地控制自己了。
He sat staring out of the window as if in a trance. 他坐在那里，两眼凝视着窗外，好像被催眠了。