Pigs on the Wing (Part 2) Lyrics

Lyric discussion by MrY 

Cover art for Pigs on the Wing (Part 2) lyrics by Pink Floyd

I think that a "shelter from pigs on wings" is an intimate relationship. My logic in thinking that is that "pigs on the wings" in any sort of sense are enemies, but if you have a deep meaningful relationship, they can't harm you emotionally.