Step 1: Enlightenment Background.
After his long penance, Siddhartha Gautama meditated under the Bodhi tree by the Nairanjana river in Bodh Gaya (Bihar, India).
Step 2: The Event.
After seven days of continuous meditation, he attained Nirvana and became the "Buddha". This event occurred in Bodh Gaya.
Step 3: Significance.
Bodh Gaya is considered the most important Buddhist pilgrimage site today. The Mahabodhi Temple, a UNESCO World Heritage Site, is located here.
Step 4: Option Analysis.
- (1) Sarnath: The first sermon was given here, not enlightenment.
- (2) Bodh Gaya: Absolutely correct, this is the place of enlightenment.
- (3) Rajagriha: The first council was held here, but not enlightenment.
- (4) Isipatana-migadayi: The first teaching was given here, but not the attainment of Bodhi.
Step 5: Conclusion.
The Buddha's attainment of Bodhi occurred in Bodh Gaya.