The effect on Rumi was immediate: abandoning his familial and scholarly responsibilities he gave all his time to learning as much as possible from Shams. However, the mystic came and went without explanation, and vanished permanently in 1248. From then on, Rumi devoted himself to poetry, and primarily to the topic of love. His verses, inspired by Shams—more than 30,000 in all—were collected in a work that he called "Diwan-i Shams-i-Tabriz" ('The Divan of Shams of Tabriz'). Stylistically, Rumi favoured the well established, "ghazal," a traditional Persian meter of up to twelve rhyming lines; and to a lesser extent, the "Rubai" quartrain form.