Finally, seated in meditation beneath a pipal tree at Bodh Gaya in India, the Four Noble Truths were revealed to him.
The FOUR NOBLE TRUTHS were revealed when he sat in meditation. 
mnli hypothesis: The FOUR NOBLE TRUTHS were revealed when he sat in meditation.  premise: Finally, seated in meditation beneath a pipal tree at Bodh Gaya in India, the Four Noble Truths were revealed to him.