Our inner ears consist of two parts, the cochlea, dedicated to hearing and the vestibular organs, responsible for sense of balance or equilibrioception. The vestibular system hidden in the ear attracts little public or scientific attention, in part due to its lack of obvious “sensations”. In fact, in most cases, the vestibular system seamlessly integrates with vision to maintain postural balance and visual stability. However, the sensations produced by the vestibular system are actually very salient, such as the feeling of weightlessness when falling and the sense of sudden acceleration. My lab studies how vestibular system achieves its diverse functions, ranging from postural balance and visual stability to spatial navigation and autonomic regulations.