That would be a paradox, since it's a contradictory statement.
Even though Esquivel knows the story of maiz is a myth, she nevertheless warns her daughter not to step on a kernel of corn because the corn represents fertility and the kernels are part of the ritual. It would be wrong, or perhaps even sinful to step on such an important symbol of their culture which is why Esquivel doesn't want her daughter to be in some kind of danger because of such a reckless act.
Answer: The Moon appears to change shape because we see different amounts of the lit part as the Moon orbits Earth. When the Moon is between Earth and the Sun, the lit side is hidden from us. As it moves around Earth, more and more of the lit side comes into view. Then it begins to disappear again
Explanation: