Acharya Prashant explains the distinction between the merging of the mind and its total destruction, as taught by Shri Ramana Maharshi. He clarifies that while sleep or certain meditative states offer a temporary merging where the mind becomes invisible, it inevitably reemerges because its identity remains intact. This cyclic relaxation is insufficient for liberation because it merely recharges the individual to return to the same delusions and disappointments. True liberation requires the final destruction of the mind, which means going to its very root rather than just addressing its various branches or activities.