Sanatana Dharma rests upon a vision of reality in which an eternal, all-pervading principle, Brahman, underlies and sustains the universe, while the inner Self, Atman, is of the same essential nature as that ultimate reality. This metaphysical insight is closely linked to the doctrines of karma, the moral law of cause and effect, and samsara, the ongoing cycle of birth, death, and rebirth through which the individual soul journeys. The highest human aspiration is moksha, liberation from this cycle through realization of the unity of Atman and Brahman, a freedom characterized by the cessation of ignorance and bondage. Within this framework, dharma functions as both cosmic order and right living, guiding each person according to nature, circumstances, and stage of life.

The tradition articulates a structured vision of human life through the purusharthas, the four aims that give ethical and spiritual orientation: dharma (righteousness and duty), artha (material well-being), kama (legitimate enjoyment and desire), and moksha (spiritual liberation), with the last regarded as the ultimate end. These aims are further integrated with the ashrama system, which describes four stages of life: the disciplined life of the student, the responsibilities of the householder, the gradual withdrawal of the forest dweller, and the renunciation of the sannyasin dedicated to spiritual realization. In this way, worldly responsibilities and spiritual aspirations are not seen as opposed, but as capable of being harmonized within a single overarching path.

Sanatana Dharma also emphasizes multiple complementary paths to spiritual realization, including the way of knowledge (jnana), the way of devotion (bhakti), the way of selfless action (karma yoga), and the disciplined path of meditation (often associated with raja yoga). These are supported by a rich scriptural heritage, with the Vedas regarded as foundational, and texts such as the Upanishads, the Bhagavad Gita, the Puranas, and the great epics serving as authoritative guides to doctrine and practice. The guru–disciple relationship functions as a living conduit for this wisdom, ensuring that teachings are not merely theoretical but embodied and transmitted in lived experience.

Ethically, Sanatana Dharma gives central place to virtues such as ahimsa (non-violence), satya (truthfulness), and seva or dana (selfless service and generosity), along with compassion, peace, forgiveness, and detachment from selfish clinging. These values are further refined through disciplines like the yamas and niyamas, which cultivate purity, contentment, austerity, self-study, and surrender to the Divine. Underlying these practices is a vision of the same Self present in all beings, expressed in ideals such as seeing the world as one family and recognizing diverse deities and paths as manifestations of a single truth. This leads naturally to an ethos of tolerance and acceptance, where different approaches to the Divine are honored as valid expressions of the one eternal way.