I've been thinking a lot about imagination and memory. For anyone who is unaware, I'm a big fan of the machinima series Red Vs. Blue. I think the guys at Rooster Teeth who put it together have, knowingly or unknowingly, presented us with some fantastic existential insights and some wonderfully imaginative imagery that can be used in philosophic thought.
I'm not a huge fan of so-called "pop-philosophy", but I think that insights grow out of different sources for different people. The value should be in the thoughts that come out of the material, not in the material itself.
One of the really great gags introduced in Season 2 of RvB is Caboose's Mind. It's presented as a strange world in which there are copies of the characters as they appear from Caboose's point of view. The characters return several times and the Mindscape has changed based on external events. Caboose's memory of Church is killed by O'Malley in their first visit, which results in him forgetting who Church is.
What do you suppose your mindscape might be like? Do you, like Caboose, have stereotyped memories of your friends that are the way you think of them? Are your memories in some kind of framework like this that alters your recall of them?
Try calling up memories of images. Where are you seeing them? Try sounds and voices. Where are you hearing them? Try tastes and smells. Try touch. What sense perception are you employing to recreate these sensations? How long can you make them last? What are your memories like? How specific are your memories: visually, audibly, olfactory?