To me, the intermediate stage of sainthood Sakadagami, seem to be very subjective. Does significant weakened mean 99.99% or more? I also can’t understand the logic of him returning to this world only once. However I think this is a very important mile stone for path to attain Nirvana.
Your input is much appreciated.
I have extracted the following from the Wekipedia.
In Buddhism, the Sakadagami (Pali; Sanskrit: Sakridāgāmi), "returning once" or "once-returner," is a partially enlightened person, who has cut off the first three chains with which the ordinary mind is bound, and significantly weakened the fourth and fifth. Sakadagamiship is the second stage of the four stages of enlightenment.
The Sakadagami will be reborn into the human world once more. If, however, he attains the next stage of enlightenment (Anagamiship) in this life, he will not come back to the human world.
The three specific chains or fetters (Pali: saṃyojana) of which the Sakadagami is free are:
1. Sakkāya-diṭṭhi (Pali) - Belief in self
2. Vicikicchā (Pali) - Skeptical doubt
3. Sīlabbata-parāmāsa (Pali) - Attachment to rites and rituals
The Sakadagami also significantly weakened the chains of:
4. Kāma-rāga (Pali) - Sensuous craving
5. Byāpāda (Pali) - Ill-will
Thus, the Sakadagami is an intermediate stage between the Sotapanna, who still has comparatively strong sensuous desire and ill-will, and the Anagami, who is completely free from sensuous desire and ill-will.
“As the lamp consumes oil, the path realises Nibbana”