Seneca

For Zen practitioners, life is transitory and insubstantial. There is no security and thinking otherwise is a waste of time. 

They also don’t believe in an afterlife. Reincarnation can be more accurately thought of as a constant rebirth, of death throughout life, and the continual coming and going of universal energy before and after death.

The word 'Zen' means emptiness or void. This is the basis of Zen — that all that exists is based on a dynamic emptiness. Which is also what quantum science says.

In this view, there is no difference between matter and energy. Look at anything closely enough and you will see that it is an event, not a thing. Furthermore, there is not a ‘multiplicity of events’. There is just one event, with multiple aspects, unfolding.