Answer

Paryushan falls during the transition from the last part of Shravan into the first part of Bhadarva because this period belongs to the traditional Jain Chaturmas season, when monks and nuns stay in one place and householders get a special opportunity for spiritual practice.

In the Śvetāmbara tradition, Paryushan is observed for 8 days, commonly ending on Samvatsari, which falls on Bhadarva Sud 4. Therefore, the 8 days begin four days earlier, covering the last 4 days of Shravan and the first 4 days of Bhadarva.

Explanation

In Jain Dharma, the rainy season is spiritually significant because:

• During rains, many tiny living beings grow and move about.
• To avoid harming them through travel, Jain sādhus and sādhvīs observe Chaturmas by staying in one place.
• This creates a sacred environment where laypeople can listen to discourses, study scriptures, do pratikraman, practice fasting, and strengthen self-discipline.

Paryushan is placed within this period because it is a time for:

• Ātma-chintan — reflection on the soul
• Pratikraman — repentance for faults
• Tapasya — austerity and fasting
• Kshamapana — asking forgiveness
• Dharma-shravan — listening to Jain teachings

The reason it is said to fall on the “last 4 days of Shravan and first 4 days of Bhadarva” is because Samvatsari is observed on Bhadarva Sud 4, and the eight-day Paryushan period is counted backward from that day.

Spiritual Understanding

Paryushan is not mainly about the calendar date; it is about turning inward. The timing during Chaturmas reminds us to reduce outward movement and increase inner purification.

The rainy season naturally supports the Jain values of:

• Ahimsa — non-violence toward even the smallest beings
• Sanyam — restraint
• Tap — austerity
• Kshama — forgiveness

Takeaway

Paryushan falls at the end of Shravan and beginning of Bhadarva because it is part of the sacred Chaturmas period, and in the Śvetāmbara tradition its final and most important day, Samvatsari, is observed on Bhadarva Sud 4. The timing helps devotees focus on purification, forgiveness, and spiritual upliftment.