Password security is very important to protect users and computer systems from malicious activity. Often complexity is encouraged by suggesting use of numbers and punctuation in an attempt to make passwords harder to break. This logic is to a large degree flawed as they’re not harder to crack and they are less memorable leading people to write them down (which, as I hope you know, is very bad practice).
But it is possible to have easy to remember and secure passwords by choosing a short phrase. Although it might look easy to crack, it’s not, and the brain is very good and memorising phrases.
Of course xkcd has a comic to demonstrate this perfectly: