Jains celebrate five major events in the life of a Tirthankara. They are called Kalyanak (auspicious events).
They are:
1. Chyavana Kalyanak
2. Janma Kalyanak
3. Diksha Kalyanak
4. Kevaljnana Kalyanak
5. Nirvana Kalyanak
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This is the event when the Tirthankara Soul (Atman) departs from its last life and is conceived in the Mother's womb.
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This is the event when the Tirthankara Soul is born. Snatra Puja is a ritual celebrating this event in which Indra does abhisheka on the Tirthankara on Mount Meru.
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This is the event when the Tirthankara Soul renounces or give up all wordly possessions and becomes a Monk / Ascetic.
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This is the event when the Tirthankara attains Kevaljnana (Absolute Knowledge) A divine Samavasarana(Preaching Hall) appears, from where the Tirthankara delivers sermons and restores the Jain community & teachings.
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This is the event when the Tirthankara Soul is liberated from this worldly physical existence forever and becomes a Siddha. On this day, his soul destroys the 4 aghati karma's completely and attains salvation, the state of eternal bliss.
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