There are endless reasons that people choose to meditate, for some it's just a habit they've developed to help them start the day, but for others it's their only way of reducing stress and tension in their lives.
There are tools that help with meditation, some like to listen to a binaural beat to give them an extra boost to reaching the desired state of mind. Listening to a binaural beat speeds up the process of meditation, especially for those just getting started or who have a hard time concentrating.
Binaural beats use sounds of different frequencies to help stimulate various parts of the brain. Different frequencies can be used to target pain, promote relaxation, or help ease the brain into an alpha state of mind (where it is most efficient).
Usually there will be two frequencies played, one going into each ear, and the brain will then create it's own frequency to balance out the other two that are already playing. This is how different parts of the brain can be targeted and encouraged to work in a different way.
Because the mind has to be in a specific frequency to experience true meditation the binaural beats are especially effective for those on the run or that don't have hours a day to devote to meditation.
The frequencies are often hidden in other sounds, so they're easy to listen to. One of the greatest things about learning to use binaural beats is that they can be taken anywhere and used at any time.