Homeopathy and New Thought: The Medical Roots of Mental Healing

The New Thought movement, a loosely organized religious and philosophical movement that emerged in the late nineteenth century, emphasized the healing power of the mind. Its roots are deeply entwined with alternative medical practices, particularly homeopathy, which provided a scientific-seeming rationale for the idea that mental states could influence physical health. This article explores the medical roots of mental healing, tracing the influence of homeopathy on key figures such as Phineas Quimby and Warren Felt Evans, and showing how these ideas coalesced into the New Thought movement, with its various branches and publications.

Historical Context

In the nineteenth century, orthodox medicine—often termed allopathic—was frequently ineffective and sometimes harmful. As medical historian James Whorton notes, alternative systems such as homeopathy, botanical medicine, and mesmerism offered different approaches that appealed to patients dissatisfied with conventional care (Whorton, Nature Cures). Homeopathy, developed by Samuel Hahnemann, posited that “like cures like” and used highly diluted substances, emphasizing the body’s vital force. This emphasis on the individual’s inner healing capacity resonated with metaphysical ideas. Additionally, transcendentalism, with its belief in an immanent divine spirit, and Swedenborgianism contributed to a cultural milieu where mental and spiritual healing were plausible. The rise of Christian Science, founded by Mary Baker Eddy, and the later New Thought movement both drew from these currents, though they diverged in theology and practice (Marin-Lamellet, Revue française d’études américaines).

Main Narrative

Origins

The origins of New Thought lie in the work of Phineas Parkhurst Quimby (1802–1866), a clockmaker and mesmerist from Maine. Quimby developed a method of healing based on the idea that disease is a product of erroneous beliefs and that correcting these beliefs could restore health. He left only scattered manuscripts to his followers, but his ideas were spread by those he influenced (Cambridge Core). Quimby’s approach was influenced by mesmerism and his own experiments with mental suggestion.

Founders

Among Quimby’s followers, Warren Felt Evans (1818–1889) was the most significant in articulating the movement’s philosophy. Evans was a homeopathic physician who became a mental healer after encountering Quimby’s ideas. He was the first American mental healer to publish extensively, writing six books that decisively influenced the growth of New Thought (Cambridge Core). Evans combined homeopathic principles with mental healing, arguing that the mind’s power could cure disease. His works provided a systematic framework for mental healing.

Beliefs

The core belief of New Thought is that the mind is the primary factor in health and disease. This idea was reinforced by homeopathy’s emphasis on the vital force and the individual’s constitutional susceptibility. Evans and others argued that disease is a manifestation of mental error, and that healing comes through correcting these errors, often through affirmations or metaphysical practices. This belief diverged from Christian Science’s emphasis on the unreality of matter, instead focusing on the power of positive thought (Marin-Lamellet).

Institutions

New Thought did not form a single institution but rather a network of loosely affiliated groups. The International New Thought Alliance (INTA) was founded in 1914 to coordinate these groups. Various churches and societies emerged, including the Divine Science Church, founded by Nona Brooks and Malinda Cramer, and the Unity School of Christianity, founded by Charles and Myrtle Fillmore. Religious Science, established by Ernest Holmes, also became a major branch. These institutions emphasized mental healing and practical spirituality.

Publications

The movement’s spread was facilitated by periodicals. Early publications included The Christian Science Journal (though this was for Christian Science), and later Unity Magazine (founded 1890), Science of Mind magazine (from Religious Science), and The Nautilus (founded by Elizabeth Towne). These magazines disseminated teachings and provided a sense of community. Evans’s books were also foundational, and later authors like Ralph Waldo Trine wrote influential works such as In Tune with the Infinite (1897).

Major Events

The 1890s saw the formalization of New Thought as a distinct movement. In 1899, the first New Thought convention was held in Boston, and the movement grew rapidly in the early twentieth century. The formation of the INTA in 1914 marked a significant organizational milestone. The movement also faced controversies, particularly with Christian Science over theological differences and legal battles.

Branches

New Thought branched into several denominations. Divine Science, founded in the 1880s by Malinda Cramer and Nona Brooks, emphasized the immanence of God and mental healing. Unity, founded in 1889 by Charles and Myrtle Fillmore, combined New Thought with Christian elements. Religious Science, established by Ernest Holmes in the 1920s, emphasized a scientific approach to prayer. Each branch had its own interpretations but shared the core belief in mental healing.

Changes Over Time

Over the twentieth century, New Thought evolved, incorporating elements of psychology and the human potential movement. The emphasis on positive thinking influenced popular self-help culture. However, the medical roots, particularly homeopathy, receded as the movement became more focused on spiritual and psychological aspects. Yet the legacy of mental healing remained central.

Present-Day Organizations

Today, the International New Thought Alliance continues to exist, and branches like Unity and Religious Science have millions of followers. The movement’s teachings have permeated modern self-help and motivational literature. While homeopathy is no longer a central influence, the idea that the mind can heal the body remains a powerful legacy.

Why It Matters in New Thought History

The medical roots of New Thought, particularly its debt to homeopathy, are essential for understanding the movement’s development. Homeopathy provided a scientific veneer for mental healing, making it acceptable to a middle-class audience seeking alternatives to orthodox medicine. The emphasis on the mind’s power to heal, which was central to New Thought, has had a lasting impact on American religious and cultural life, influencing everything from the New Age movement to contemporary wellness trends. Students of New Thought history must appreciate this medical context to grasp how the movement distinguished itself from Christian Science and other contemporaries.

Primary Sources

• Phineas Quimby’s Manuscripts (compiled in The Quimby Manuscripts, edited by Ervin Seale, 1961) – Scattered notes and writings that form the foundational texts of mental healing.
• Warren Felt Evans, The Mental Cure (1869) – Evans’s first major work, applying homeopathic and metaphysical principles to mental healing.
• Warren Felt Evans, Mental Medicine (1872) – Further elaboration of his system, emphasizing the mind’s role in health.
• Unity Magazine (founded 1890) – A key periodical of the Unity branch, spreading New Thought teachings.
• Science of Mind magazine (founded 1927) – The official publication of Religious Science, founded by Ernest Holmes.
• The Nautilus (founded 1898) – A New Thought magazine edited by Elizabeth Towne, focusing on personal growth and healing.
• International New Thought Alliance Records – Archival materials documenting the movement’s organizational history and conferences.