About This Teaching
Sitting after almsround, Ajahn Dtun saw his body become flowing water, and on another occasion saw all four elements churning like molten lava in a great wok. Such beauty and rapture arose that tears streamed down his face and he returned to his hut to compose himself, yet attachment to the body was still not fully cut.
Wanting to intensify his practice, he went with a fellow monk to a small place behind a village monastery, where a third monk joined them. They agreed to skip group chanting and sittings, and he kept silence for the whole rains retreat. Finding the Visuddhimagga there for the first time, he saw its ten contemplations of corpses and felt that what he had seen in meditation went much further.
Just before that retreat he had watched an autopsy in Bangkok and found it far less clear than the images arising in his own mind; afterwards everything seemed so empty that he felt he could walk through people and buildings. A closing explanation adds that letting go of attachment to the body happens in three stages, and that at stream entry ill will is gone though subtle displeasure can remain.