Strawberry Parable

"A man was wandering in the wilderness when a tiger appeared and began to chase him. Panicked, he fled to the edge of a cliff with the ferocious beast on his heels. Spotting a thorny vine rooted on the rock, he swung himself down over the chasm.

Above, the tiger howled and pawed at the rock; below, he saw the gaping jaws of a second tiger. Suddenly, a white mouse and a black mouse appeared and began to gnaw at the vine, but the man did not notice. He had found a plump, red strawberry growing on the face of the cliff. Holding onto the vine with one hand, he plucked the fruit with the other and popped it into his dry mouth. How sweet it was!

Is this story, which appears in the book Fishing for the moon and other Zen stories, by Lulu Hansen, which my friend Alice gave me as a birthday present, another version of "sufficient for today are the evils of today?"

Is it about "mindfulness" or about how life is so terrible that all we can do is eat a strawberry before we ourselves are consumed? What IS it about?