A Buddhist Bible: The Lankavatara Sutra: Chapter X. Discipleship: Lineage of the Arhats

THEN MAHAMATI ASKED the Blessed One: Pray tell us how many kinds of disciples there are?

The Blessed One replied: There are as many kinds of disciples as there are individuals, but for convenience they may be divided into two groups: disciples of the lineage of the Arhats, and disciples known as Bodhisattvas. Disciples of the lineage of the Arhats may be considered under two aspects: First, according to the number of times they will return to this life of birth-and-death; and second, according to their spiritual progress. Under the first aspect, they may be subdivided into three groups: The "Stream-entered," the "Once-returning," and the "Never-returning."

The Stream-entered are those disciples, who having freed themselves from the attachments to the lower discriminations and who have cleansed themselves from the twofold hindrances and who clearly understand the meaning of the twofold egolessness, yet who still cling to the notions of individuality and generality and to their own egoness. They will advance along the stages to the sixth only to succumb to the entrancing bliss of the Samadhis. They will be reborn seven times, or five times, or three times, before they will be able to pass the sixth stage. The Once-returning are the Arhats, and the Never-returning are the Bodhisattvas who have reached the seventh stage.