जीवो अत्थि य लोगे, एयं जिणेहिं पण्णत्तं ॥२१.१॥
The soul exists in the world — this is what the Jinas have proclaimed.
The chapter opens — and effectively the entire Jain creed opens — with the most fundamental affirmation in Jain metaphysics: the soul (jiva) is real. Jivo atthi: the soul exists. Mahavira is speaking here as the voice of the Nirgranthas, and his very first claim is that there is a real, conscious, knowing entity that is the subject of bondage, practice, and liberation — and that this entity is genuinely distinct from the body, from matter, and from the physical processes through which it is expressed. The claim is introduced as what the Jinas have proclaimed (jinehim panattam) — not a philosopher's theory but a teaching grounded in the direct perception of fully liberated beings. In the ancient Indian philosophical landscape, this was a contested position: the Charvakas denied the soul entirely, saying only the material body exists. The Buddhists offered a different account, denying a permanent self (anatta). Against all such denials, the Jain teaching stands firm: there is a real jiva, and its reality is the foundation on which karma, bondage, and liberation all rest.
The simple version: The soul is real. This is the first and most basic affirmation of the Jain teaching, and it comes from those who have directly experienced liberation.