Sefer haZohar on the Prayers of the Righteous and Angels Appointed Over Prayers of Israel

"Rabbi Abba said: [...] The blessed Holy One constantly desires the prayers of the righteous and crowns Himself with their prayers, as they have said: That angel appointed over the prayers of Israel takes all those prayers, fashions them into a crown, and places it on the head of Vitality of the Worlds, as they have established. All the more so with prayers of the righteous, desired by the blessed Holy One, fashioned into a crown with which He is crowned. [...]

"Come and see what Rabbi Shim'on said: 'The prayer of a congregation ascends before the blessed Holy One, who crowns Himself with that prayer because it ascends in many colors, encompassing many facets. Interweaving many colors, it is made into a crown and placed on the head of the Righteous One, Vitality of the Worlds; wheras the prayer of an individual is not interwoven but monochromatic and so not as readily received as the prayer of a congregation.'"

-- Sefer haZohar 1:167b (transl. D. Matt)