His "Several Prohibitions Proposed by an Imagist" proposed that poetry should be concrete and avoid abstraction; the form should allow continuous lines and should not be cut into lines; it should be concise and no waste words should be used , no need to modify, do not use poetry to describe, describe, etc. He believed that the formation of images meant the sudden combination of emotion and reason into a synthesis. Pound developed this view on imagery when he broke away from the Imagists and became enthusiastic about the Vorticism movement. He said that the image is not a thought, but a luminous nodule, a vortex, from which many thoughts are constantly rising, or dissolving into it, or passing through it. The explanation of this special function of imagery has had a great influence on the structure of modern poetry.