I recently heard a class – on the meaning of the hidden idea that when Moshaich comes we will transform our three intellectual faculties – (as is known, in the era preceding Moshiach, the important thing is transforming negative to positive emotions) the Rabbi said (this was on chabad .org, Rabbi Kaplan, and it was given at the Montreal Torah Center) that the transformation of the mind, is something that can only come from beyond the mind – for the mind is beyond the emotions; so though it may be hard to change a habit, we can (For example, the Alter Rebbe suggests, imagining that which is attractive to be repulsive; say a woman filed with excrement, if one needs to do so) But to transform the mind means the very operating system (say windows7) has to be deleted and a new version installed – but this I believe is the very definition of the era of Moshiach – when the Divine mind shall merge