At one time the Buddha was traveling along the road between Ukkaṭṭhā and Setavyā, as was the brahmin Doṇa. Doṇa saw that the Buddha’s footprints had thousand-spoked wheels, with rims and hubs, complete in every detail. It occurred to him, “Oh lord, how incredible, how amazing! Surely these couldn’t be the footprints of a human being?” The Buddha had left the road and sat at the root of a tree cross-legged, setting his body straight, and bringing mindfulness to the present. Then Doṇa, following the Buddha’s footprints, saw him sitting at the tree root—impressive and inspiring, with peaceful faculties and heart, attained to the highest self-control and serenity, like an elephant with tamed, guarded, and controlled faculties. He went up to the Buddha and said to him:

“Sir, might you be a god?” “I will not be a god, brahmin.” “Might you be a centaur?” “I will not be a centaur.” “Might you be a spirit?” “I will not be a spirit.” “Might you be a human?” “I will not be a human.”

“When asked whether you might be a god, centaur, spirit, or human, you answer that you will not be any of these. So what then might you be?”