According to Bernard of Clairvaux, the goal of the crusade was to battle the pagan Slavs "until such a time as, by God's help, they shall either be converted or deleted". However, the crusade failed to achieve the conversion of most of the Wends. In preaching the Crusade, Bernard had urged to not make truce or accept any form of tribute, but the crusaders did receive tribute from Niklot as mentioned, which contributed to Bernard's perception of the crusade as a failure. The Saxons achieved largely token conversions at Dobin, as the Slavs returned to their pagan beliefs once the Christian armies dispersed; Albert of Pomerania explained, "If they had come to strengthen the Christian faith ... they should have done so by preaching, not by arms". There was no Wendish clergy established nor any Christian literature translated into the language of the Wends. Without any institutions in place, the forced conversion of the Wends was not sustainable. The only successful conversions were achieved by the Danes. The Danes recaptured the island of Rugen in 1168 and were able to re-Christianize it through the establishment of churches and by allowing Prince Jaromit of Rugen to remain in power after he fully accepted Christianity. The Danes were able to be successful through their method of encouraging Christianity rather than focusing solely on controlling the newly acquired land.