How do I make the most of binaural?

[usulnaut]

I know that the binaural sounds must be listened to with headphones, but nothing more. Should I put myself into trance? Lie or sit still with eyes closed? How often should I use? How do I gage the effectiveness? Can I use one binaural file after another?

[dottie]

[usulnaut]

Thanks. Somehow I had never heard of binaural noise before finding this site.