A person's life purpose is nothing more than to rediscover, through detours or art, or love, or passionate work, those one or two images in the presence of which that person's heart first opened.
All the angels are amazed at humans, who through their holy works appear clothed with an incredibly beautiful garment. For the angel without the work of the flesh is simply praise; but the humans with their corporeal works are a glorification! Therefore the angels praise humans' work.