Those white corpuscles

Mulligan's mock Mass takes even more literally than does the Catholic church itself the mystery of transubstantiation at the heart of the ceremony. Encountering "A little trouble about those white corpuscles," he asks the "old chap" upstairs to inject some more electricity into his magical cup, and announces that this extra quantum of energy has done the trick: "That will do nicely. Switch off the current, will you?"

JH 2013

The wafer and the wine. Source: