King David cried out,"You do not desire burnt offerings, the sacrifices of ELOHI"M is a broken heart, because a broken and humble heart you do not despise."
The Mysterious Granfather of the Zohar (Parshat Mishpatim) explains these verses. Offerings may only be offered to the Eternal One YHV"H, but to ELOHI"M which is the name of Divine judgement. One may not offer to ELOHI"M because there are many powers in the world calledd elohim and some of the are from the evil side. So how does one relate to this aspect of the Divine? It is only with the broken heart, that is the offering to ELOHI"M.
In our mixed up world not all criticism is constructive. there is so much criticism out there that is just smallmindedness or fear or jealousy. So one can't offer an offering judgment, that is to totally melt one's soul in worship and bond with that face of the Divine. By doing that one may accidentally get caught up in negative constrictions that stunt the blooming of the soul and distance the person from give in the deepest way he can. But the way that we can relate to this aspect of God is with a broken heart. We must be able to hear the voices that challenge us, some of them might loving at their source truly coming from the Divine judgment. We must be humble enough to able to examine them earnestly by feeling out the truthfulness of the voices, while at the same time not allowing the negativity to wash us away and negate our joyful spirit.
In Pirkei Avot it is taught that if we really desire to hear God's voice through the Torah we must learn to be a "lover of criticism." The Zohar would add to that a warning not to go too far in this love. We can't totally worship criticism, and we must remember that there is an inner core in us that can never be criticised.