Answer

In Jain Dharma, a fast is not broken by “sailing a boat in milk or kheer.”

For Kheer Samudra Tap / fast, the fast is traditionally connected with kheer, and the parna — breaking of the fast — may be done with kheer, depending on the tradition followed.

But the idea of placing or sailing a boat in milk/kheer before breaking the fast is not a core Jain scriptural requirement. It may be a local custom, symbolic ritual, or community practice, but it should not be understood as an essential Jain rule unless your specific Jain tradition or guru has instructed it.

Explanation

In Jain practice, breaking a fast is called parna. Parna should be done:

• At the proper time
• With purity and awareness
• Without attachment to taste
• According to the guidance of one’s guru or tradition

If the tapasya is called Kheer Samudra, then kheer has symbolic or ritual importance, and eating kheer at parna may be part of the observance.

However, ritual actions like sailing a small boat in milk/kheer are not universally practiced across Jain traditions.

Spiritual Understanding

The main purpose of any Jain fast is not the food used for parna, but:

• Self-control
• Reduction of attachment
• Purification of karma
• Devotion and discipline
• Awareness of the soul

So even if a symbolic custom is performed, the inner bhav should remain focused on vairagya, humility, and spiritual purification.

Takeaway

Yes, Kheer Samudra fast may be broken with kheer according to tradition, but sailing a boat in milk or kheer is not an essential Jain requirement. It is best to follow the guidance of your guru, sadhu-sadhviji, or family tradition for the exact parna vidhi.