Lyric discussion by diphthong 

Cover art for Trampoline lyrics by Wild Strawberries,The

trampoline = where one jumps up and down.

perhaps a song about moodswings, going between lots of ups and downs that are uncontrollable and happen for no reason, and that cannot be resolved with words ("please don't give me your reasons, i'll never need them when i'm on my trampoline...")

also maybe a bit of ego? "i can shoot an arrow through anything" = i can destroy anything, i can find a reason to justify everything i do...