We will always feel that regret Dogen speaks of when flowers fall, when a parent dies, as we get old, and so on. It's the fantasy that we can somehow escape all that that sets up a false dichotomy between simplicity and difficulty. And when we create that dichotomy, we can practice for years always vaguely feeling we're not getting it right. But when we allow difficulty to freely come and go in our life, when we recognize it as an inescapable aspect of Life, it becomes part of the essential simplicity of Life. One thing follows another.
Flowers fall and weeds grow.