Our brains produce THETA waves in the frequency range of 4-8 Hz. Whereas BETA activity is considered the conscious mind, THETA is the sub-conscious mind. Slower than ALPHA, and present in dreaming sleep, THETA provides the experience of deep meditation. THETA is characterized by a blissful state of well-being. However, in THETA, you may have an increasing experience of being at one with everyone and everything. During this time some meditators may also experience a variety of inner images and visions. THETA brainwaves engage the subconscious where we hold memories, sensations and emotions.