Have you seen the movie Inside Out? If not, stop reading! This thread contains spoilers!
Look at the lyrics of Forgotten.
“From the top to the bottom
Bottom to top I stop
At the core I’ve forgotten”
In the movie, the emotions lose the core memories, they were forgotten.
“In the middle of my thoughts”
Literally in the middle of her thoughts.
“Taken far from my safety”
Towards the end of the movie, Riley runs away.
“The picture is there
The memory won’t escape me
But why should I care”
She no longer cares about anything once she loses her core memories.