Answer

In Jain Dharma, the most important recitation during Barsa Sutra / Barasa Sutra is generally considered to be the Navkar Mantra.

The Navkar Mantra is the most fundamental and universal Jain mantra. It does not ask for worldly benefits; it offers reverence to the highest spiritual beings:

• Arihants
• Siddhas
• Acharyas
• Upadhyays
• All Sadhus and Sadhvis

Explanation

If you are asking about what should be recited most importantly during a Jain religious observance, then Navkar Mantra is always central because it purifies thoughts and reminds the soul of the path to liberation.

Many Jain traditions also recite other sutras, stotras, or stavans depending on the occasion, sect, family tradition, and guidance of the guru.

Spiritual Understanding

The greatness of Navkar Mantra is that it focuses on the qualities of liberated and spiritually advanced souls. By remembering them, we develop humility, purity, right faith, and inspiration to follow the path of non-violence, self-control, and liberation.

Takeaway

If only one thing is to be recited, Navkar Mantra is the safest and most important Jain recitation.