But actually this noble silence is a silence of being present. And that is where nobility comes from in the word noble silence.”
In an episode of the podcast The Way Out Is In, Brother Phap Huu of Plum Village

So silence is also a language of love and noble silence is a distinguished silence that we are giving ourself the space to reflect, the space to be alive. It is not a repression. It’s not to repress ourself of speaking, of thinking and so on…

but there’s something to fierceness in Zen. It’s like, you have to meet the beast. You have to meet your monsters in order to really learn to embrace and love yourself…

As a consequence,
grasses and trees, as well as thickets and forests, are impermanent and, accordingly,
they are Buddha Nature
🙏
Master Dogen Zenji 🙏

‘Not yet
undergone change’ means that, even though we may shift our perspective to our subjective self or shift it to the objective, outer world, in both cases there are no
signs of change to be found. In that sense, it is constant.

Shōbōgenzō: On the Transmission of the Kesa