Hiya, first post so please be gentle with me…
As a bit of long time lurker on the forum, I’ve kind of found myself drawn back to this post – hopefully it is something I might be able to offer to offer some help with!
Without getting too over 'obsessive' on the lyrical front

– over the years I’ve always put that down to Fish’s time in Cambridge. As a Cambridge chap myself, though much younger – I always recalled that the poems of E.E. Cummings became super-fashionable with many college girls at Cambridge - at about the time the Fish and Diz were, I think, in Cambridge – particularly with the English faculty girls from Newnham - at exactly the same time that me and few mates desperately tried chat to chat these girls up too! - Though I was far too young to make too much of an impression with them, as an eventual English grad myself - I do always recall thinking that the line might have, kind of – been ‘inspired’ or otherwise ‘sunk in’ from the Cummings stuff I heard from around that time – I certainly recall having a poem called “The time of Daffodils” being quoted to me, and another that said something (apologies if I recall incorrectly!) along the lines about “eat flowers and do not to be afraid”
(but then again what do I know!)...