Once Ananda saw an archer perform extraordinary feats. He told the
Buddha how much this had impressed him - and coming from the warrior
caste, Ananda must have been temperamentally disposed to appreciate
such displays of martial skill. The Buddha used this statement to
draw an analogy. He said it was more difficult to understand and
penetrate the Four Noble Truths than to hit and penetrate with an
arrow a hair split seven times (SN 56:45).
Another report says that Ananda once saw the famous brahmin
Janussoni, a disciple of the Buddha, driving along in his glorious
white chariot. he heard the people exclaim that the brahmin's
chariot was the most beautiful of all. Ananda reported this to the
Buddha and asked him how one could describe the best chariot
according to the Dhamma. The Buddha explained the vehicle to Nibbana
by means of a detailed simile:
Faith and wisdom are the draught-animals, moral shame the brake,
intellect the reins, mindfulness the charioteer, virtue the
accessories, meditation the axle, energy the wheels, equanimity the
balance, renunciation the chassis; the weapons are love,
harmlessness, and solitude, and patience is its armour (SN 45:4).