The Seraphim Choir is the highest and most magnificent of the nine accepted Angelic choirs. Without question they are the closest in all of heaven to the very throne of God, and their primary function is to circle the incomprehensibly beautiful throne in perpetual adoration of the Lord. This is a task that is not nearly as monotonous as it may seem to mortals, given the nature of the angels (who have perfect powers of concentration) and the delight that such an honour actually brings to the spirits.
The Seraphim are almost always identified with fire-not the burning, painful flames and heat of hell, but the healing flame of Love. They are literally living flames. The intensity of their adoration and pure Love of God pure out of them as a flawless reflection of the divine Love that emanates from the Lord. Like the rising sun, each angel radiates such light that even the other holy beings, the cherubim and the thrones, cannot look upon them.