Who Can Put Whom Down?

Many years You have been hiding in my wounds I have let go of heaven and earth But I never let you go The mountains and rivers in my life Let you say goodbye one by one worldly affairs except life and death Which thing is not a trivial matter This is a poem that He Yi likes very much, written by Tsangyang Gyatso. Perhaps when she first read it, she didn't quite understand its meaning, but after a long time passed, she understood it. Isn't that right? Apart from life and death, what other things in this world are not trivial matters?