Balmon,
Holosync uses different frequencies in both left right ears to 'entrain' the brain, put simply.
Does it work ... I believe it does, I have experienced change in my life, for the good!
Holosync is not designed to be used consciously, hence the reason for closing your eyes. Holosync may bring you too deep, but even if it did, it was not designed to be used with eyes open and brain fully engaged. My opinion, I not an expert yet, but Marc or Bill at Centerpointe are very knowledgeable about their product.
Humbily,
Michael Saikali
