Dharmanath is the fifteenth Tirthankara. His vajra (thunderbolt) as the lanchhana is a symbol with deep Jain meaning.

• Essence (arth): The vajra signifies unwavering steadfastness in dharma—truth, right conduct, and the detachment needed for liberation. It embodies the strength of spiritual discrimination to cut through karmic bondage and ignorance. In Jain iconography, the vajra ties Dharmanath to Brahmacharya, discipline, and the resolute pursuit of moksha. You can read about his symbol and how it fits with his life and mission here .

• Purpose: The vajra marks Dharmanath as a guide who upholds righteousness and helps beings cut through passions and wrong beliefs, leading them toward kevala jnana (omniscience) and liberation. It symbolizes the power to decisively overcome obstacles on the path of ethics and spiritual purification. See discussion of the 24 Tirthankaras and their symbols, including Dharmanath with vajra, here .

• Properties ( Lakshana/attributes in Jain context):

- Symbol: Vajra (thunderbolt) as his lanchhana. - Associated with the Ratnapuri region and the Diksha/Keval Gnan tradition of that Tirthankara’s life story (Dharmanath’s birth and attainment of kevala jnana are part of his standard hagiography). See the Ratnapuri narrative and Dharmanath’s identity here . - In some Jain traditions, yaksha/yakshini and other devotional associations for Dharmanath are noted; however the principal and defining symbol remains the vajra. See related listings for Dharmanath and his symbol here .

• Digambar vs. Shwetambar note: Both Digambar and Shwetambar traditions recognize Dharmanath and his vajra symbol. The core meaning of the vajra as a symbol of steadfast dharma and spiritual strength is preserved in both traditions, though minor devotional details or accompanying symbols may vary by temple or literature. The essential essence of the vajra for Dharmanath is the same in both traditions.

If you’d like, I can point to a concise Jain source that lists the 24 Tirthankaras and their symbols, including Dharmanath with vajra.