It is the believed that the following effects might be achieved by listening to binaural beats. In order to understand how binaural beats can induce states of meditation, deep relaxation, or even lucid dreaming, there's a need to understand the importance of brain wave patterns and frequencies. In the theta state of deep relaxation and meditation, you might experience mental imagery or sensations that you might not experience during the normal conscious awareness.

The delta state is associated with deep, dreamless sleep, whereas the theta state is associated with deep relaxation, meditation, and mental imagery. Brainwave entertainment involves the use of isochronic tones, harmonic box constructions, monoaural beats, binaural beats, etc., for inducing meditation, trance-like states, etc.
The term 'frequency following response' refers to this effect wherein the brain follows or resonates with this beat.

This effect was studied by Gerald Oster, a biophysicist at Mount Sinai Hospital in New York City in the early 1970s.

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