In Jainism, Paryushan is one of the most important annual festivals, emphasizing self-purification, spiritual upliftment, and reflection. The festival lasts for 8 days (for Śvetāmbara Jains) or 10 days (for Digambara Jains).

Day 1 of Paryushan marks the beginning of this auspicious period. It is a day for Jains to set their intentions, adopt vows (vratas), and start observing increased spiritual activities such as:

• Fasting or dietary restrictions (upavās, ekāsan, etc.)
• Increased prayer, meditation, and scriptural study (svādhyāya)
• Practicing forgiveness and seeking to minimize harm (ahiṃsā)
• Self-introspection and confession of past wrongdoings (pratikraman)
• Renunciation of certain comforts and luxuries

The first day is seen as the gateway to self-discipline, repentance, and a deeper connection with the teachings of the Tirthankaras. Śvetāmbara Jains often begin with the recitation of the Kalpasutra, while Digambara Jains start their observances with the reading of the Tattvartha Sutra and focus on Das Lakshana Dharma (ten virtues).

Overall, Day 1 of Paryushan signifies the commencement of a sacred journey of spiritual cleansing, forgiveness, and striving towards liberation (moksha).