Percy Bysshe Shelley (1792-1822) has used and created myths in his poems. Mythmaking involves attributing human qualities to the nature and natural elements. Shelley’s powerful imagination has attributed nature and natural elements with human qualities. At the same time he does not distort scientific truths about nature. The nature keeps its own features intact. There lies the excellence of poetic creation of P.B.Shelley. Incidentally his poems can be justified poetically, mythological, scientifically and naturally. This article focuses on the works of Shelley’s imagination to create myths out of nature and natural elements in his poems like The Cloud, To the Skylark, Ode to the West Wind, To the Moon.