Nendomatsu(年度末) is a Japanese word for "end of the fiscal year(US)/financial year(UK)" in English.
So most Japanese very busy during March.
I often hear it that someone gives a deep sigh.
Japanese people said that; if you gave a deep sigh,your happiness runs away.
And my teacher said that; if someone gives a deep sigh, you inhale it, you will get the happiness.
I like his thinking.