Sant Mat writings on the inner path of Light and Sound consistently place ethical discipline at the very foundation of spiritual practice. A central emphasis is on ahimsa, non‑violence in thought, word, and deed, which is expressed most concretely through a strict vegetarian or lacto‑vegetarian diet that excludes meat, fish, and eggs, and through kindness toward all beings. This non‑harmful way of living is closely linked with truthfulness and integrity: seekers are urged to avoid lying, deception, slander, and gossip, and to ensure that their outer conduct reflects their inner spiritual aspiration. Honesty in financial dealings, work, and relationships is treated not as a merely social virtue but as a spiritual necessity.

Another major strand in Sant Mat ethics concerns purity and self‑restraint. Chastity, or brahmacharya in a form appropriate to one’s station, is stressed: for householders, this means fidelity and moderation within marriage; for those who undertake it, celibacy. Total abstinence from alcohol, recreational drugs, and other intoxicants is repeatedly underlined, since these are seen as clouding consciousness and obstructing meditation. Alongside this, there is a call for moderation in food, sleep, and sensory indulgence, so that the mind remains clear and receptive to inner practice.

Sant Mat literature also highlights non‑stealing and right livelihood as indispensable. This includes refraining from theft, cheating, and exploitation, and avoiding professions that involve killing, fraud, or moral harm to others. Earning a living by honest, ethical means and fulfilling family and social duties responsibly are portrayed as part of walking the path, not distractions from it. Service (seva) to others, especially when done selflessly and without expectation of reward, is regarded as service to the Divine and to the inner Master.

On the inner plane of character, these texts call for humility, love, and compassion, as well as control over the “five passions” of lust, anger, greed, attachment, and pride. Patience, forgiveness, tolerance, and contentment are cultivated as antidotes to these forces, while remembrance of the Divine, repetition (simran), and meditation are used to weaken their hold. Faithfulness to spiritual discipline—regular meditation on the inner Light and Sound, observance of vows regarding diet, sobriety, and moral conduct, and refraining from the misuse of inner experiences—is presented as essential. In this way, the ethical guidelines are not treated as optional adornments, but as the very ground that makes safe and steady progress on the inner path possible.