"By default, you're supposed to have a voice, that's not good because so many people don't feel at ease and relaxed. Your voice should not be good, because the voice is very susceptible to the body. And anything that changes in the body. Anything that makes you feel tense in the body will affect your voice, for example, we all have stress. If you feel stressed, then you are not going to have the best voice if you have never trained on that."

— Cynthia Zhai