This quote by Christopher Marlowe is a metaphor for the creative procedure of composing. The phrase "jigging veins" is a reference to the concept of a writer's innovative energy, or "veins", being "jigged" or stirred up. The "rhyming mom wits" is a reference to the mom of all imaginative concepts, or the "mother wit", which is expressed through making use of rhyme. Marlowe is suggesting that the creative procedure of writing is a combination of stimulating one's imaginative energy and revealing it through making use of rhyme. This quote is a suggestion that the imaginative process of writing is a mix of both inspiration and craft. It is not enough to just have an innovative concept, but one should also have the ability to express it in such a way that is both significant and reliable.