Most of us know what it is to be sure of what we want to do and completely unsure of when to do it. Brian Routh's "When" strips away everything except that second problem. There is no "what", no "who" and no "why", only phrases that begin "when to" and, with one exception, end on the same small, blank word: "it".
That "it" does a lot of work. Because it never names anything, it can be a secret, a person, a song, a piece of cake. The first six lines (say, do, touch, hear, want, taste) read like a quick tour of human experience, moving from speech and action to the senses. The odd one out is "want". Desire is not a sense, yet it sits between hearing and tasting as if it were one, as though wanting were just another way of touching the world. The lines are also grammatically unfinished. Each sounds like the end of a sentence such as "I never know…" or "learn…", but the poem never supplies the opening. That hesitation is the poem's real subject.
Sound takes over in the middle. The first stanza has no rhyme, so when "sing it / wing it / sling it" arrives, the effect is almost cheeky, like a playground chant. The meanings slide as the sounds lock together. To sing is to express yourself openly. To "wing it" is to improvise, which is oddly the opposite of knowing when. To "sling it" is to throw something without much care. Then comes "hop it / chop it / stop it", where the rhyme is tighter and the mood darker. Hopping is light and childish, chopping is violent, and stopping ends everything. The jaunty rhythm hides the fact that the actions are getting more serious.
That rhythm is simple. Most lines run to four syllables, with the stress on the verb ("when to SAY it") and the line trailing away into the unstressed "it". The result is a tapping, skipping beat that lulls the reader. The shape on the page does something similar. The stanzas shrink from six lines to three, then three, then one, so the poem narrows like a funnel toward its last line.
That last line breaks the pattern in three ways. "when to dye it red" stands alone, with no rhyming partner. It is longer than the others, and for the first time a line does not end on "it", which is tucked inside instead. The final word is a colour, the only image in a poem otherwise made of verbs, so it lands with real force. Red can mean blood, anger, passion, embarrassment or celebration, and the poem refuses to choose. Dyeing is also a deliberate, lasting act. Unlike singing or hopping, it can't easily be undone, so the question of "when" suddenly carries weight. Out loud, "dye" also sounds exactly like "die". Whether Routh intended that echo is impossible to say from the poem alone, but after "chop it" and "stop it" it is hard to ignore.
The poem is significant for how much it gets out of so little. It uses one repeated structure, one pronoun and a few sound patterns to turn a nursery-rhyme rhythm into something unsettling. It also leaves the reader to finish it. We have to decide what "it" is, who is hesitating and what the red stands for, and our answers will probably say something about our own mistakes with timing: the thing said too soon, the chance missed, the act that couldn't be taken back. The poem shows that "when" can be the hardest word in a decision, and it ends not with an answer but with a colour.