The three treasures are Buddha, Dharma and Sangha.
Dharma is reality, how things are, which includes the teaching how of things, as they are.
Buddha is the person who wobbles in and out of this reality, quintessentially in zazen.
And what’s Sangha? When we sit together, it is indisputable that a ‘something’ arises. We could call it the field of awareness. We could call it the Buddha field. And within that field is our noise. We don’t aim to eradicate our noise, but we are not within it. Because the field has no boundary, all beings are within it.
So we sit with all beings, for all beings.