The mission of Our Lady of Saint Mary Daly is to spread the gospel of Mary Daly. Daly published a number of works, and is perhaps best known for her second book, Beyond God the Father (1973). Beyond God the Father is the last book in which Daly really considers God a substantive subject. She laid out her systematic theology, following Paul Tillich’s example. Often regarded as a foundational work in feminist theology, Beyond God the Father is her attempt to explain and overcome androcentrism in Western religion, and it is notable for its playful writing style and its attempt to rehabilitate “God-talk” for the women’s liberation movement by critically building on the writing of existentialist theologians such as Paul Tillich and Martin Buber. While the former increasingly characterized her writing, she soon abandoned the latter.

In Gyn/Ecology: The Metaethics of Radical Feminism (1978), Daly argues that men throughout history have sought to oppress women. In this book she moves beyond her previous thoughts on the history of patriarchy to the focus on the actual practices that, in her view, perpetuate patriarchy, which she calls a religion.

Daly’s Pure Lust: Elemental Feminist Philosophy (1984) and Webster’s First New Intergalactic Wickedary of the English Language (1987) introduce and explore an alternative language to explain the process of exorcism and ecstasy. In Wickedary Daly provides definitions as well as chants that she says can be used by women to free themselves from patriarchal oppression. She also explores the labels that she says patriarchal society places on women to prolong what she sees as male domination of society. Daly said it is the role of women to unveil the liberatory nature of labels such as “Hag”, “Witch”, and “Lunatic”.

Daly’s work continues to influence feminism and feminist theology, as well as the developing concept of biophilia as an alternative and challenge to social necrophilia. She was an ethical vegetarian and animal rights activist. Gyn/Ecology, Pure Lust, and Webster’s First New Intergalactic Wickedary all endorse anti-vivisection and anti-fur positions. Daly was a member of the advisory board of Feminists For Animal Rights, a group which is now defunct.

Daly created her own theological anthropology based around the context of what it means to be a woman. She created a dualistic thought-praxis that separates the world into the world of false images that create oppression and the world of communion in true being. She labeled these two areas Foreground and Background respectively. Daly considered the Foreground the realm of patriarchy and the Background the realm of Woman. She argued that the Background is under and behind the surface of the false reality of the Foreground. The Foreground, for Daly, was a distortion of true being, the paternalistic society in which she said most people live. It has no real energy, but drains the “life energy” of women residing in the Background. In her view, the Foreground creates a world of poisons that contaminate natural life. She called the male-centered world of the Foreground necrophilic, hating all living things. In contrast, she conceived of the Background as a place where all living things connect.