How did Neoplatonism develop ideas from Plato?

Neoplatonism, originated by Plotinus in the 3rd century CE, was not a simple combination of beliefs but a genuine development of ideas found in Plato and earlier Platonism, while also incorporating Aristotelian and Stoic elements.1

Plotinus developed Platonic thought through several key concepts:

• Hierarchy of Being: He posited a plurality of levels of being arranged in a descending hierarchy, originating from an ultimate, transcendent principle called "the One" or "the Good," which is beyond thought and language.21
• Emanation and Return: The universe is characterized by a double movement of outgoing and return. Reality proceeds from the One through nous (Intellect) and Soul, with each level derived from its superior and established by turning back toward it in contemplative desire.21
• The Role of Soul: Like Plato, Plotinus viewed Soul as the intermediary between the worlds of Intellect and sense, responsible for forming and maintaining the material universe.2
• Philosophical Conversion: Plotinus emphasized that humans can ascend from the material world back to the One through intellectual and moral self-discipline, effectively making philosophy a religion and a way of life.2