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The Seers of the Throne are a magical conspiracy. According to the orders, the Seers see themselves as servants of the Exarchs, the mages who conquered the Supernatural Realm and now dictate the laws and shape of reality. While they are mages themselves the Seers have decided to side with the Exarchs against the mages fighting for freedom from the Exarch's edicts. The Seers believe that the Exarchs must fear the remaining mages, who might become powerful enough ascend to the Supernatural Realm attempt topple them from their thrones. Broadly speaking the Seers seek to suppress or gain control over magic, especially any might grow to endanger their chosen lords.

In effect, the Seers believe that none has any real chance of standing against the Exarchs, and that the only rational decision is to bow down earlier and serve faithfully so that they may be rewarded once the Exarch’s victory is complete. It is unclear, however, if there actually is such a reward besides the benefits provided by the support and power provided by membership in the Seers. The Exarchs don't communicate with their self-styled servants except by visions that might just as well be the product of power-mad minds.

Seers are organized into discreet cells, called Pylons.

Source: Mage: The Awakening core rule book