Realistic cinematic scene of an office worker in a business suit sitting at his desk, mentally rehearsing weightlifting routines. His body is transforming from skinny to muscular, shirt tightening around growing muscles. Colleagues around him look amazed. Imaginary gym equipment appears as holograms floating around him. The transformation happens through visualization alone, no actual weights. Expression of deep mental focus on his face. Cinematic lighting, 2:3 aspect ratio.image