Imagine you have a box of toys with different colors, shapes, and sizes. Plato, a philosopher who lived a long time ago, believed that there is a world beyond our physical world where perfect forms of things exist. These perfect forms are like the ideal versions of the toys in your box, where every toy has the perfect shape, size, and color.
Now imagine that you have a friend who believes that the toys in your box are just as real as the perfect forms that Plato believed in. Islamic philosophers, like Ibn Sina and Al-Farabi, believed that there is a world beyond our physical world too, but it is not perfect forms like Plato thought. Instead, this world is made up of spiritual concepts, like love, truth, and justice.
These Muslim philosophers believed that our physical world is a kind of shadow or reflection of the spiritual world, just like the toys in your box are a reflection of the perfect forms or real toys. To understand the spiritual world, they believed that we need to use reason, or our ability to think deeply and logically.
So, platonism in Islamic philosophy means that philosophers believed there is a spiritual world that is more perfect than our physical world, and that we can use reason to understand it. Just like you can use your imagination to think about the perfect versions of the toys in your box, these philosophers used reason to think about the perfect versions of concepts like truth, beauty, and goodness.