The Waterboys' lyrics show influences from different spiritual traditions.
The first is the romantic Neopaganism and esotericism of authors such as Yeats and Dion Fortune, which can be observed in the repeated references to the ancient Greek deity Pan in both 'The Pan Within' and 'The Return of Pan'.
'Medicine Bow', a song from the 'This Is the Sea' album, refers to Native American spirituality in its use of the word "medicine" to mean spiritual power.
Mike Scott's interest in Native American issues is also demonstrated in his recordings for the group's debut album, which included the songs 'Death Song of the Sioux Parts One & Two' and 'Bury My Heart'.
'Bury My Heart' is a reference to Dee Brown's 'Bury My Heart at Wounded Knee', a history of Native Americans in the Western United States. Scott took the traditional Sioux song 'The Earth Only Endures' from 'Bury My Heart at Wounded Knee', and set it to new music.
Christian imagery can be seen in the songs "December" from The Waterboys, 'The Christ in You' on Universal Hall, and indirectly in the influence of Lewis in a number of other songs, but Scott writes that his lyrics are not influenced by Christianity.
Scott has also said, "I've always been interested in spirituality, and I've never joined any religion. And it really turns me off when people from one religion say theirs is the only way. And I believe all religions are just different ways to spirituality. And if you call that universality, well, then I'm all for it."
Despite Scott's pluralist perspective, The Waterboys have been labelled as "Christian rock" by some reviewers and heathens by some Christians.