
This is a freedom that is unimaginable on Imperial worlds, where rigid adherence to the Imperial Cult is always enforced. The T'au also promise that all Humans will be allowed to enjoy the freedom of religion, so long as the practice of that faith does not conflict with the Greater Good. They also promise the nobility who control planetary commerce lucrative new sources of income and new technologies in the T'au Empire where they will be free from the Imperium's mandatory tithes and excessive bureaucracy. To broaden the appeal of membership in the T'au Empire, the T'au guarantee protection from Imperial retribution to rebellious planetary governors. Knowing every victory of diplomacy spares them a potentially costly military campaign, the Ethereals and Water Caste attempt to appeal to every level of Imperial society by emphasizing the many different aspects of the Greater Good.

Some of the Water Caste's initiatives have resulted in the smooth transition of an Imperial planet to a new allegiance to the T'au Empire, while others have unleashed the full wrath of the Imperium on the T'au.

The T'au face steep opposition to this effort, as most Humans of the Imperium display a fierce hatred for all xenos and an abiding belief in the Human supremacist doctrines of the Imperial Creed. In pursuit of this objective, the T'au Water Caste has launched many diplomatic missions with varying degrees of success in turning Imperial citizens to the service of the Greater Good. The Ethereal Caste of the T'au understands that the best path to survival in the face of the Imperium of Man's colossal war machine lies in the peaceful absorption of Imperial worlds and assets wherever possible.
