The ear not only advocates hearing, but also passively hears the surrounding information, so in dreams, it often implies everything passively heard.
Although ants are small in appearance, they are dense and continuous, which may imply that you will encounter some trivial troubles in the near future. Although these events are small, they will make you worry, at least for a short time.
Personal advice, no matter what happens, you might as well pay more attention to some details. You'd better stick to your own principles for external views and opinions.