In Orations, Dion Chrysostom explains that ‘The Kings, who sat on golden thrones and lived luxuriously in their great residences, became mere agents of the decisions of the Druids’.
It is also well attested in the Early Irish texts that nearly every King had a Druidic advisor.
Its destruction would have devastated the morale of the remaining Druidic communities in Britain, and even the every-day civilians, especially of nearby tribesmen and women.
While this ended the Druidic religion in official terms, this presumably did not mean the immediate stop of Druidic activity or influence.
Understandably, if conquest of the Gallic and British peoples was to be complete, such an influential class of people would have to be removed.
Such people were officially destroyed after a series of steps were taken, ending in the destruction of the Druid sanctuary on Anglesey.
Indeed, the Romans even held a belief in genii loci.
Similarly, the Celts had no universal Gods, and therefore had an abundance of them, many bearing close resemblance in name and function to others.
Worship seems to have been very localised, with many different Gods being worshipped and no specific reasoning behind this, besides perhaps the isolation of the Celts from each other. Collingwood says that, ‘Both unofficially and officially, the Roman was ready not only to tolerate Celtic religion, even in its humblest local manifestations, but to join in it.’ The Romano-British temples, sometimes called Romano-Celtic temples, may be examples of this, as they are temples built traditionally in Roman form, but often associated with Celtic deities.
The Romans defeated the Druids, the men and women who had stood screaming curses in defense of their groves and raized the island verdant cornfields.
Anglesey had been, by this time, a well established Druidic sanctuary; its lake, Llyn Cerrig Bach, contained over 150 metal objects, presumably votive offerings, dating from the 2nd Century BCE to the 1st Century CE.
Unlike Christians, the Pagan Celts had little or no objection to burning incense or making animal sacrifices to the Divine Emperor.