Hi lilith! The phrase "tap into your memory" means doing something to cause you to remember something or being reminded of something. For example, I might say "I have not studied in a long time so I have to tap into my memory," to express that I have to try hard to remember what I have studied. I hope this helps!

It basically means search your memory for something. 😊

It's the definition of TAP that means to make use of a source, probably not the first definition of tap.

It means to search inside your memory, or to find whatever you are looking for inside your own memory.