I like surreal, impressionistic and post-modern images in writing. The best way of introducing that into song lyrics is to use the (infamous) cut up method, popularised by William Burroughs.
The idea - assuming you've not heard of this - is to take a sheet of lyrics and cut them up, then re-arrange them to make a new pattern. Many many artists have done this, Beck, Nirvana, Bowie, John Lennon, Radiohead etc etc.
It can really help when you're stuck in a creative rut.
Lets hear your cut up songs.
tag 'em #cutupsongs