"Acting doesn't have to be threadbare misery all the time"

Fiona Shaw's quote suggests that acting does not need to be a miserable experience. She is encouraging actors to check out the series of feelings that can be revealed through their craft. Acting can be an effective tool for self-expression and can be utilized to explore a range of emotions, from happiness to sorrow. Shaw is recommending that actors need to not limit themselves to just revealing negative emotions, but should also check out the complete variety of feelings that can be expressed through their craft. By doing so, they can create a more significant and effective efficiency. Shaw's quote is a suggestion that acting can be an effective and satisfying experience, which it does not have to be a threadbare torment all the time.