Often referred as void, is the feeling of deep loss, craving, nostalgia, boredom and sadness one can feel after experiencing life by procuration (through book, movies, games, music...)
It can be quite impactful on adolescent still searching the meaning in life and can cause uncertainty on one's self-worth
This feeling can last up to a few months depending on your sensibility
A: man I just finished Eragon. I feel so useless... I want a dragon so much.
B: sounds like someone got procurative void there
A: yea I'm struggling with it how do you never seem to get it
B: it's simple, just never stop the flow of stories.