"Good lyrics" refers to the quality or content of the words in a song. It means that the words are well-written, meaningful, and can connect with the listener emotionally or intellectually. Full definition
Good lyric writing in a song presents you with one clear main idea, usually delivered in the chorus — the part where everyone in the sanctuary throws their hands up and sings, that you repeat several times, where the melody gets higher and you have to belt. (relevantmagazine.com)
Like anyone else, I'm still finding new tactics to be more positive more often, but one thing I know for sure is nothing helps me put words to my feelings like good lyrics. (littlemissfearless.com)