Without the marvellous ‘head full of knowledge’’ of the Buddha’s chief attendant, Ananda, there would be no Buddhism today. It is Ananda who is responsible for all of us having access to the Buddha’s teachings. His agreement to become the Buddha’s attendant included never missing a teaching, and, that, if he did, the Buddha would repeat that teaching to him in private.
Ananda was so exhaustingly busy attending to the everyday needs of the Buddha and others to concentrate on his own advancement in the Dhamma. He always put himself last.
When he did finally concentrate on his own spiritual advancement, he achieved arahantship within a day.Ananda – Guardian of the Dhammahttp://www.accesstoinsight.org/lib/auth ... el273.html