It is an interactive performance and installation that attempts to display invisible human emotion and physiological changes into auditory representations. The work uses a commercial brainwave sensor to visualize and musicalize biological signals as art. The real-time detected brain data was used as a means to self-monitor and to control. The installation is comprised of 48 speakers and aluminum dishes, each containing a pool of water. The layout of “Eunoia (Vr.2)” was inspired by an Asian Buddhist symbol meaning ‘balance.’ The motif of number 48 comes from Spinoza’s ‘Ethics’ (Chapter III), classifying 48 human emotions into three categories – desire, pleasure, and pain. In this performance, water becomes a mirror of the artist’s internal state. It aims to physically manifest the artist’s current states as ripples in pools of water.