Eles cresceram para amar Aman e a luz das árvores
Como detalhado em O Silmarillion , o Vanyar teve um awing para as Duas Árvores e as terras do Valar. Isso combinado com sua graça aos olhos de Manwë e Yavanna levou-os a abandonar a cidade de Tirion e se mudar para Taniquetil
As the ages passed the Vanyar grew to love the land of the Valar and the full light of the Trees, and they forsook the city of Tirion upon Túna, and dwelt thereafter upon the mountain of Manwë, or about the plains and woods of Valinor, and became sundered from the Noldor.
The Silmarillion - Chapter 5: Of Eldamar and the Princes of the Eldalië
The Vanyar indeed held [Melkor] in suspicion, for they dwelt in the light of the Trees and were content
ibid - Chapter 6: Of Fëanor and the Unchaining of Melkor