Plato criticizes poetry in several of his dialogues, beginning with Apology, his first work, and ending with Laws, his last. In these dialogues, his criticism of poetry can be divided into two streams: poetry is criticized for either being divinely inspired, or because it is mimetic or imitative of reality. However, of the dialogues which criticize poetry in these ways, it is not until Laws that Plato mentions both inspiration and mimesis together, and then it is only in a few sentences. Furthermore, nowhere in the dialogues does Plato discuss their relationship. This situation has a parallel in the secondary literature. While much work has been done on inspiration or mimesis in Plato’s criticism of poetry, very little work exists which discusses the connection between them. This study examines Plato’s treatment - in the six relevant dialogues - of these two poetic elements, inspiration and mimesis, and shows that a relationship exists between them. Both can be seen to relate to two important Socratic-Platonic concerns: the care of the soul and the welfare of the state. These concerns represent a synthesis of Socratic moral philosophy with Platonic political beliefs. In the ‘inspiration’ dialogues, Ion, Apology, Meno, Phaedrus and Laws, poetic inspiration can affect the Socratic exhortation which considers the care of the individual soul. Further, as we are told in Apology, Crito and Gorgias, it is the good man, the virtuous man - the one who cares for his soul - who also cares for the welfare of the state. Therefore, in its effect on the individual soul, poetic inspiration can also indirectly affect the state. In the ‘mimesis’ dialogues, Republic and Laws, this same exhortation, on the care of the soul, is posed, but it is has now been rendered into a more Platonic form - as either the principle of specialization - the ‘one man, one job’ creed of Republic, which advances the harmony between the three elements of the soul, or as the concord between reason and emotion in Laws. While in Republic, mimesis can damage the tripartite soul's delicate balance, in Laws, mimesis in poetry is used to promote the concord. Further, in both these dialogues, poetic mimesis can affect the welfare of the state. In Republic, Socrates notes that states arc but a product of the individuals of which they are composed Therefore, by affecting the harmony of the individual soul, mimesis can then undermine the harmony of the state, and an imperfect political system, such as a timarchy, an oligarchy, a democracy, or a tyranny, can result. However, in Laws, when it is harnessed by the philosophical lawgivers, mimesis can assist in the concord between the rulers and the ruled, thus serving the welfare of the state. Inspiration and mimesis can thus be seen to be related in their effect on the education of both the individual, in the care of the soul, and the state, in its welfare. Plato's criticism of poetry, therefore, which is centred on these two features, addresses common Platonic concerns: in education, politics, ethics, epistemology and psychology.