picture yourself in a boat on a river
with tangerene trees, and marmalade skiiiies

what a way to open a song

oh, and i heard it was johns kid that drew the drawing not pauls, but like solistus said its probably incorporates lsd as well as the picture, and who knows what else. john lennons lyrics are so beautifully abstract it doesnt matter what the song is about it just matters that it sounds right.