I don't know the science behind binaural beats. But then again, I never looked into it. I listened to a bunch on Youtube because they were popular (over 1 million views for some) but I got SUCH a bad feeling in my head and soul, and something about it just felt OFF. It was a VERY strong intuitive feeling within me.
My belief is that Power Meditation from the JoS site, as well as being guided by your Guardians, is much more effective in advancing than binaural beats.
Others may have a different opinion.
how they effect brain are they good for spirituality and meditation if yes how can we use them to our benefit