The Bodhi Tree, also known as Bo (from the Sinhalese Bo), was a large and very old Sacred Fig tree located in Bodh Gaya (about 100 km from Patna in the Indian state of Bihar), under which Siddhartha Gautama, the spiritual teacher and founder of Buddhism later known as Gautama Buddha, achieved enlightenment, or Bodhi.
A Bodhi tree in Thailand is said to be the type of tree the Buddha sat under as he received full Buddhist enlightenment. The Thai Buddhists hold the tree sacred and frequently wrap silk around it in respect.