In his book, 'You Forever', Lobsang Rampa wrote that great artists are constantly in touch with their higher selves or ourselves. A quote from his book follows--
"Very highly intelligent men who get “inspiration” often obtain a message directly-consciously-from the ourselves. by way of the Silver Cord. Leonardo da Vinci was one of those who was constantly in touch with his Overself, and so he rated as a genius in almost everything that he did. Great artists or great musicians are those in touch with their Overself on perhaps one or two particular “lines,” and so they bask and compose “by inspiration” music or paintings which have been more or less dictated to them by the Greater Powers which control us."
Meditation sensitizes us to these perceptions and thereby our creativity tremendously. Keep Meditating