Answer

For students in Jain Dharma, the most respected mantra for focus, calm mind, and mental purity is the Navkar Mantra.

Mantra: Namo Arihantanam Namo Siddhanam Namo Aayariyanam Namo Uvajjhayanam Namo Loe Savva-Sahunam Eso Panch Namokaro Savva-Pavappanasano Mangalanam Cha Savvesim Padhamam Havai Mangalam

Explanation

If you want better concentration while studying, do this:

• Sit quietly before study.
• Chant the Navkar Mantra 9, 27, or 108 times.
• Keep your mind on the meaning, not only the words.
• Then begin your study with a calm mind.

This mantra is considered very powerful in Jain tradition because it helps:

• reduce restlessness
• increase inner peace
• bring humility
• improve concentration
• create a pure and steady mind

Spiritual Understanding

In Jain Dharma, mantra jap is not for quick supernatural power. It is for:

• self-discipline
• mental clarity
• inner purification
• focus on the right path

For students, a calm and pure mind helps learning much more than anxiety or hurry. The Navkar Mantra reminds us to respect the qualities of the Arihants, Siddhas, Acharyas, Upadhyayas, and Sadhus, which inspires right thought and steady effort.

Takeaway

For brain power and focus, the best Jain practice is:

• Navkar Mantra jap
• regular study
• clean habits
• calm and disciplined mind

If you want, I can also give you a short daily Jain study mantra routine for students.