...to hold and sustain the vessels as they were descending... This is a consequence that flows from what was explained earlier (Opening 30) that even though the unity becomes concealed, it necessarily continues to exist. Accordingly, even at the very moment of destruction, the destruction was not total but took place through the mystery of unity, whereby the unity does not prevent the Other Side from exercising great power yet still does not allow it complete control....so that the destruction would not be complete... i.e. total negation....but only such that it could be repaired again. So that afterwards it would be able to be repaired again.