From time immemorial artistic insights have been revealed to artists in their sleep and in dreams, so that at all times they ardently desired them.
ParacelsusAnd it is true, best is nothing concealed which shall not be discovered; for which cause a marvellous being shall come after me, who as yet lives not, and who shall reveal many things.
ParacelsusHowever, anyone to whom this happens should not leave his room upon awakening, should speak to no-one, but remain alone and sober until everything comes back to him, and he recalls the dream.
Paracelsus