I don't remember when was the first time I encountered this proverb. Maybe when I was young and was struggling to acquire English as a second or third language. Somehow it stuck. And many a time, it gives me consolation. The time when I felt sad because I didn't do very well in my exam, or the time when I had a difficult stage in friendship and relationship, or when somebody upset me so much to the point of crying. I'd recite the words like a mantra, and true enough, the bad time would pass.
I hang on to the words again, as I endure a stage of discomfort in my present life. 13 days post-operation. Comfortable enough to read, do some computer work and prepare light meal, but still unable to walk as fast as I would rather walk. And still dreaming of doing Latin dance (my form of exercise) every Friday with colleagues of same hobby. It will be months before I can do that again.
This too shall pass...I am saying this with a big smile on my face. (and will fake the smile till it becomes real!)