Answer

In Jain Dharma, wearing a yantra around the neck is not a core spiritual requirement. Jain spirituality primarily emphasizes:

• Samyak Darshan — right faith
• Samyak Jnan — right knowledge
• Samyak Charitra — right conduct
• Ahimsa, self-discipline, mantra, pratikraman, and inner purification

Some Jain families or traditions may wear religious pendants such as:

• Navkar Mantra pendant
• Om / Hrim symbol
• Tirthankar image pendant
• Jain yantra or protective religious locket

But it should be worn with shraddha and respect, not as superstition or a replacement for right conduct.

Explanation

If you wish to wear something around the neck from a Jain perspective, the safest and most meaningful choice is usually a pendant or locket connected with:

• Navkar Mantra — the most revered Jain mantra
• 24 Tirthankars
• Shri Parshwanath Bhagwan
• Shri Mahavir Swami

A yantra should be treated respectfully. Avoid wearing it casually in impure situations if your family or guru tradition has specific rules.

Spiritual Understanding

In Jain Dharma, true protection comes from:

• Pure thoughts
• Non-violence
• Truthfulness
• Self-control
• Navkar Mantra remembrance
• Good karma through right conduct

A yantra or pendant may support devotion, but it does not remove karma by itself. Inner purity is more important than any external object.

Takeaway

You may wear a Navkar Mantra or Tirthankar pendant around your neck if it increases your devotion and mindfulness. But in Jain Dharma, the greatest “yantra” is sincere practice of Ahimsa, Navkar Mantra, and right conduct.