- Anicca - Impermanence
- Dukkha - Suffering
- Anatta - Not-self
Thich Nhat Hanh defined "emptiness" as always being empty of something. A glass is empty of water but filled with air, therefore the usage of "empty" is always relative to something. In the case of Buddhism, emptiness referred to being empty of "self". Thay then defined this "emptiness of self" as "inter-being" - Because that is, this is - like how a flower is made of non-flower elements.