Memories danced through his mind.

Meaning: This means that the old man was thinking about things that happened in the past.

Choice of Words: Memories are thoughts or images of past events. Danced means to move gracefully or rhythmically. Through means moving in one side and out the other side of something. His is a possessive pronoun that refers to the man. Mind is the part of a person that thinks, feels, and remembers.