Atman
The deep self or inner principle is a central theme of many Hindu schools.
What it is: Atman usually designates the deep self, the inner principle, or the reality of the being that goes beyond superficial and transient identity.
How the tradition understands it: In some schools, knowing the atman is decisive for liberation. In others, the relationship between atman, the individual soul, and ultimate reality is explained in different ways.
Textual basis and context: The Upanishads are the main classical basis for this theme. The concept is also interpreted philosophically by Vedanta schools.
Debates and variations: Some currents defend identity between atman and Brahman; others maintain a real distinction between the individual being and God.
Supportive
Chandogya Upanishad 6.8.7
Tat tvam asi in a classical context.
Reference: Chandogya Upanishad 6.8.7.
Content: The famous formula tat tvam asi appears in a teaching about ultimate reality and the deep self.
Use in debate: It is central to readings of atman and Brahman, especially in Vedanta.
Katha Upanishad 2.18
A description of the unborn and deathless self.
Reference: Katha Upanishad 2.18.
Content: The text describes the self as unborn and indestructible.
Use in debate: It is important for formulations about atman and continuity of being.
Contrary
Chandogya Upanishad 6.8.7
Tat tvam asi in a classical context.
Reference: Chandogya Upanishad 6.8.7.
Content: The famous formula tat tvam asi appears in a teaching about ultimate reality and the deep self.
Use in debate: It is central to readings of atman and Brahman, especially in Vedanta.
Dhammapada 279
A comparative Buddhist source on the absence of self.
Reference: Dhammapada 279.
Content: The Buddhist verse formulates the absence of self in dhammas.
Use in debate: It is useful in comparison because Jainism, by contrast, affirms the reality of the soul.