What is the reason why you didn't give up the teacher of Yin and Yang?

My mother was diagnosed with terminal cancer during the National Day and died on April 23rd. I spent the best time with my mother at home, and the teacher of Yin and Yang accompanied me through the most blank, darkest and most powerless life stage. The existence of Yin and Yang teachers just runs through this period, which diverts some of my mental attention and makes me less depressed.