In Plato’s “Republic,” he argues that artists, particularly poets and painters, should be kept away from the ideal state he envisions. Plato’s concerns about the influence of artists on the state can be understood through the lens of his philosophical ideas and his vision of an ideal society.

1. Imitation and Representation: Plato believed that artists create imitations or representations of the physical world. He was concerned that these imitations are at a remove from the ultimate reality or the Forms (ideal, perfect entities that represent the true nature of things). According to Plato, art is a copy of a copy, and it falls short of capturing the true essence of reality.
2. Emotional Influence: Plato was wary of the emotional power of art. He argued that art, particularly tragic poetry and drama, has the potential to evoke strong emotions in individuals. These emotional responses, according to Plato, can cloud reason and lead to irrational behavior. In an ideal state, where reason and wisdom are highly valued, Plato was concerned that the emotional impact of art could be detrimental to the citizens.
3. Moral and Ethical Concerns: Plato believed that artists, especially poets, could undermine moral and ethical values. He was critical of certain myths and stories in poetry that depicted gods and heroes engaging in morally questionable behavior. Plato thought that exposure to such narratives could negatively influence the moral character of the citizens in his ideal state.
4. Unreliable Creators: Plato was skeptical of artists as reliable creators of knowledge. He argued that artists may not have a deep understanding of the subjects they depict and might unintentionally mislead the public. In his ideal state, where knowledge and truth are highly valued, Plato preferred the guidance of philosopher-kings who have a profound understanding of the Forms.
5. Preference for Rational Pursuits: Plato’s ideal state prioritizes rationality, wisdom, and the pursuit of truth. He believed that activities such as philosophy and the contemplation of the Forms were more valuable for the individual and the state than the creative, yet imitative, endeavors of artists.

In summary, Plato’s reservations about allowing artists into his ideal state are rooted in his philosophical views on the nature of reality, the potential emotional influence of art, concerns about moral values, the reliability of artists as conveyors of knowledge, and his preference for rational pursuits over emotional or imaginative ones. By excluding certain forms of art, Plato aimed to create a society guided by reason and moral virtue.