本句使用了比喻这种修辞手法，来描写人们从病痛之中解脱的幸福心情。
In this sentence, the figure of speech, simili, is applied to describe people's joyful relief from sufferings from diseases.
幸福可以说是一种积极的心情和愉悦的心境。
Happiness can be described as a positive mood and a pleasant state of mind.
然而，心情和暂时的情感都是不能和幸福相提并论的。
However, moods and temporary emotions are not the same as happiness.
应用推荐