"...I should make use of water." It has only recently occurred to me how wonderfully ironic it is that Larkin, of all poets--drink-sodden Larkin--should write a poem about the transcendental qualities of water. You'd picture him, rather, taking W C Fields' perspective on that liquid. Perhaps the whole poem is a carefully considered irony.
""If I were called in to construct a religion I should make use of alcohol; Bacchus my god, and boozy transports my ascension."