Asteya, also called achaurya, is the third of the five great vows of Jainism and enjoins the practitioner to refrain from stealing. The term combines the negating prefix "a" with "steya" (theft), yielding the principle of non-stealing. In its fullest sense, asteya means not taking anything that has not been freely and rightfully given, whether the object be material goods, ideas, opportunities, or another person's due.
The vow rests on a broad understanding of what constitutes theft. Beyond the obvious act of taking another's property by force or stealth, Jain ethics counts as stealing a range of subtler transgressions: cheating in trade, using false weights and measures, evading lawful dues, receiving stolen goods, adulterating products, and acquiring wealth through deceit or exploitation. Even taking something left unattended, or appropriating what belongs to the community or the natural world without warrant, falls within the vow's concern. To take more than one needs is itself understood as a form of theft against others.
The philosophical basis of asteya lies once again in the doctrine of karma and the Jain analysis of the passions. Stealing arises chiefly from greed (lobha), the craving to accumulate, and it is frequently accompanied by deceit and violence. Such acts bind heavy karma to the soul and deepen its entanglement in samsara, the cycle of rebirth. Non-stealing, by contrast, weakens greed and cultivates contentment, honesty, and respect for the rights of others, thereby purifying the soul.
Asteya is intimately connected to the other vows. It is a natural extension of ahimsa, since theft inflicts harm and distress upon its victims. It is bound to satya, for stealing almost always involves deception. And it is closely allied with aparigraha, non-possession, since the drive to acquire beyond one's rightful share is the root of both hoarding and theft. Together these vows form an integrated ethic of restraint and respect.
For Jain ascetics, asteya is upheld as a Mahavrata, a great vow observed with scrupulous care. Monks and nuns accept only what is freely offered and only what is necessary, taking alms without demand and refraining from appropriating anything, however small, that has not been given. They will not take even a blade of grass, water, or a place to rest without permission. This meticulous honesty expresses the ascetic's total renunciation of possessiveness.
For the Jain layperson, asteya is practiced as an Anuvrata, a lesser vow adapted to the responsibilities of commerce and household life. The householder pledges to earn a livelihood through honest means, to deal fairly in business, to pay just wages and taxes, and to avoid fraud, smuggling, black-market dealings, and dishonest gain. This ethic profoundly shaped the mercantile culture of Jain communities, who became known for scrupulous integrity in trade.
The tradition specifies several classic breaches of the vow that the layperson must avoid, including prompting others to steal, receiving stolen property, transgressing regulations of the state, using false weights and measures, and adulterating goods. Vigilance against these subtle forms of dishonesty is regarded as essential to true observance.
Asteya carries enduring social and economic significance. It underwrites an ethic of fair dealing, discourages exploitation, and promotes trust in human relations and commerce. In a wider frame, it invites reflection on the just distribution of resources and the moral limits of acquisition.
At its heart, asteya is a discipline of contentment. By renouncing the impulse to take what is not freely given, the practitioner cultivates inner peace and respect for all beings, transforming honesty from a social convention into a path of spiritual purification.