这篇文章描述了「另一个自我」如何帮助自己从当前的感受（如紧张）走出来，然后用另一种更冷静的状态去面对当前的场景。Beyoncé 说：Usually when I hear the chords, when I put on my stilettos, like the moment right before when you’re nervous… then Sasha Fierce appears, and my posture and the way I speak and everything is different 通常当我听到和弦时，当我穿上细高跟鞋时，就像之前你紧张的那一刻...……