Granted, that the personal self is just as illusory as the clouds in the sky and the chair I am sitting on. The chair is only a chair conceptually, though it has a material substance. And the material itself as known by me, is an interpretation of the light passing through my eyes and my sense of touch.
Insistence on the illusory nature of the personal self is not the best ground on which to understand the non dual nature of the universe. All objects are illusory--interpretations of the senses.
For all practical purposes, the personal self should no more be denied than other useful objects, while due consideration is given to the fact that all is one.
In all humility, honoring the self, is also honoring the Source. Dishonoring the self, even for the sake of spiritual pursuit, is just another form of self flagellation. It certainly doesn't honor the Impersonal Self
A true foundation for honoring the non dual nature of life is simply to acknowledge the Impersonal Self behind all manifestation. To know this is to honor all, including the personal self.
Ultimately, The One and the many are one. Any separation is not the ultimate truth, but apparent separation is the nature of manifestation.
Therefore, to honor the personal self, as well as the Impersonal Self, is not only practical, but wise. Duality and non duality are one and the same.