Answer

In Jain practice, an upvas is traditionally completed by doing parna after the proper time, commonly after Navkarsi the next morning.

If you feel you truly cannot wait due to weakness, illness, dizziness, or health concern, then you should not harm the body. In such a situation, calmly take guidance from a knowledgeable Jain elder, guru, or your family, and do what is medically safe.

Explanation

The ideal Jain practice is:

• Complete the upvas with patience and awareness.
• Do parna at the proper time after Navkarsi.
• Break the fast with simple, suitable food or drink according to your tradition.

But Jain Dharma also teaches vivek — wise judgment. Tapasya should be done with devotion, not with carelessness toward serious health conditions.

If it is only ordinary hunger, try to remain peaceful, do Navkar Mantra, rest, and wait until parna time.

If it is a real health issue, take care of your body and later do pratikraman, repentance, or suitable atonement according to guidance from a Jain guru or elder.

Spiritual Understanding

The purpose of upvas is not just not eating. Its deeper purpose is:

• self-control,
• reduction of attachment,
• purification of thoughts,
• and spiritual awareness.

So if the fast is broken early due to genuine health difficulty, keep humility and devotion in the heart rather than guilt or fear.

Takeaway

If it is manageable hunger, wait until Navkarsi and do proper parna. If it is a genuine health concern, protect your health, take guidance, and maintain a sincere spiritual attitude.