Create an illustration featuring three distinct robots, each representing a different aspect of a person: the soul, the body, and the mind. The first robot, symbolizing the soul, should have a glowing or ethereal design, with soft, flowing lines and a luminous aura. The second robot, representing the body, should be robust and mechanical, with visible joints, wires, and metallic components, conveying strength and physical presence. The third robot, symbolizing the mind, should have a complex, cerebral design, incorporating intricate circuitry, neural patterns, or a central core that resembles a brain. Place the robots in a minimalist, futuristic environment with a neutral background, ensuring that the focus remains on their individual characteristics. Use a cohesive color palette with subtle contrasts to differentiate each aspect while maintaining harmony in the overall design.