“Walking through the green bushes, not a single leaf touches me” comes from the Diamond Sutra.

It is a realm of Buddhism, which is opposite to the saying "die under peonies, and it is also romantic to be a ghost".

Summary of the Sutra:

Being untainted by dust, being free from desire, being born in the world, if not stained by dust, the mind can be obtained, that is, it is pure... If there is a man or a woman Hearing this Buddha's name, with one ear experience, from hearing and meditating, entering Samadhi, in samadhi, in desire but not tainted by desire, such a person should be able to be reborn in the six-desire heaven a thousand times...