Cosmic in the Brain - Series is an experimental artistic practice that merges neuroscience technologies with generative art, aiming to translate the abstract processes of human thought into the creation, evolution, and integration of stars within a virtual cosmos via Brain-Computer Interface (BCI) technology. Upon wearing EEG-based neural sensors, participants real-time brain activity is captured and transformed into visual parameters that drive a self-organizing digital universe simulation engine. The morphology, trajectories, spectral qualities, and eventual decay of the celestial bodies are all direct visualizations of the participant s emotional states, meditative fluctuation, and cognitive rhythms. The artist incorporates a dynamic neurofeedback mechanism into the work, enabling the viewer s brain states to form a continuous, real-time visual feedback loop. This not only enhances the immersive experience but also poses a central philosophical question: when we gaze into the cosmos, are we simultaneously observing the depths of our own minds? Or rather, is our conception of the universe itself a structured illusion-an elaborate projection of consciousness?