The Saint-Scientist Vallalar has a precise answer for what you came here for, which is does diet affect spirituality. The question itself feels deeply personal, because it is. Below, you will find the three stages of bodily transformation Vallalar documented in his writingsโand the precise dietary science he claimed makes it possible. Much writing on this topic offers vague advice about โhigh-vibrationโ foods without explaining the mechanism. Vallalar provides a detailed science of how food becomes the very substance of a body capable of holding divine light. To understand his claim, we need to look at the man who made it.
The Life and Teachings of Vallalar

Ramalinga Swamigal, known as Vallalar, was a 19th-century Tamil mystic whose collected writings, the Thiru Arutpa, remain one of the most extraordinary spiritual records ever produced. His life was filled with remarkable featsโthough he dismissed anything supernatural, insisting that everything he did was a science. He taught a path of universal compassion and self-purification, open to people of any faith or background. On January 30, 1874, accounts from those present record that he locked himself in a room in Mettukuppam and was never seen againโhis body never found. This event is documented by government records and by British Collector John Henry Garstin.
Food as the Raw Material for the Body of Light
For Vallalar, food is not merely fuel for the physical machine. It is the literal building block of the subtle body, the invisible structure that determines our spiritual capacity. The sattvic dietโa way of eating based on pure, light, plant-based foodsโis the traditional foundation of many spiritual practices, and Vallalarโs teachings align precisely with this ancient understanding.
His core principle is simple: what we eat determines the quality of the inner channels through which Arut Perum Jyothi, the vast grace-light, can flow. Impure, heavy, or lifeless food creates a dense, opaque inner body. This density obstructs the flow of grace, making spiritual experience difficult and fleeting. Pure food, on the other hand, builds a subtle, refined, and receptive body. This is not a metaphor; Vallalar presented it as a direct, physical process.
How Exactly Does Diet Affect Spirituality? Vallalarโs Nithya Karma Vidhi
Vallalar codified his dietary science in a text called the Nithya Karma Vidhi (Rules for Daily Action). This is not just a list of foods to eat or avoid; it is a blueprint for constructing a body fit for spiritual realization. The guidelines are based on how different foods affect the subtle nervous system and the clarity of oneโs consciousness.
The diet he prescribed is entirely plant-based. He taught that eating meat or fish directly introduces the fear, pain, and dense vibrations of a killed creature into oneโs own system. This creates a fundamental blockage to compassion and spiritual lightness. He also advised avoiding overly pungent or stimulating foods like excess chili, garlic, and onions, as well as foods that are overly sour or fermented. These, he explained, agitate the mind and subtle energies, making stillness and deep meditation nearly impossible.
Instead, the diet focuses on easily digestible grains like rice, gentle lentils, and vegetables that grow above the ground, such as gourds and leafy greens. The aim is to consume foods that are โsattvicโโcalm, pure, and life-promoting. This way of eating systematically removes the physical and energetic static that prevents us from perceiving subtler realities.
According to Vallalar, a sustained sattvic diet is the first step in a scientific, three-stage transformation of the physical body into a body of light. This process requires two other foundational practices.
First, Vallalar taught that none of these techniques can take root without Jeeva Karunyamโactive compassion that prevents suffering in other living beings. This means not causing harm through diet, but also actively feeding the hungry and caring for all life. Compassion purifies the heart, which is essential for any higher transformation.
Second, the body built by pure food must be refined by a constant inner focus on the divine. For this, he gave the Mahamantra, a practice of recitation to attune the entire being to the grace-light:
Aruแนญ Perum Jลti โ Aruแนญ Perum Jลti โ Taแนi Perum Karuแนai โ Aruแนญ Perum Jลti
(The Vast Grace-Light. The Vast Grace-Light. The Incomparable Great Compassion. The Vast Grace-Light.)
With these practices in place, the body undergoes a predictable transformation:
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Suddha Deham (The Pure Body): This is the first stage, achieved through disciplined diet and compassion. The body becomes free of disease, waste, and impurities. It grows light, energetic, and resilient. The aging process slows, and the mind becomes clear, calm, and sharp. This is the necessary foundation for all that follows.
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Pranava Deham (The Primal Body): As the practice deepens, the Suddha Deham evolves. The physical form becomes increasingly subtle and luminous. The need for sleep and conventional food diminishes significantly. The body begins to radiate a visible light and is no longer subject to the ordinary laws of physics, such as gravity or injury.
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Gnana Deham (The Wisdom Body): In the Thiru Arutpa, Vallalar describes this as the final stage, which he himself attained. The physical body dissolves entirely into a form of pure, deathless, intelligent lightโa complete merger with Arut Perum Jyothi. This state is conceptually similar to the โrainbow bodyโ described in some Tibetan traditions, though Vallalarโs path and explanation are distinct. He presented this not as a miracle, but as the ultimate potential of a human body completely purified by compassion and grace.
One Step Toward a Purer Body Today
You do not need to perfect the entire system overnight. The path begins with a single, conscious choice. Today, replace just one meal that contains animal products or heavy, processed ingredients with a simple, plant-based option from Vallalarโs Nithya Karma Vidhi.
Choose a simple meal of steamed rice, cooked lentils (dhal), and a mild vegetable like squash or spinach. As you eat, notice the feeling of lightness in your body afterward. This small experiment is the first step in proving the science to yourself.
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