What is the quality of a Sotāpanna ?

A Sotāpanna has following mental properties.

1) He eliminated Sakkāya-diṭṭhi (a Pali word which means a Belief in permanent-self, or real existence of himself, that he really existed)

2) He eliminated his skeptical doubt in teaching of Lord Buddha, called Vicikicchā (another Pali term). Doubt in other things are ok. We are talking about a very strong irrevocable believe in Buddha's teaching here. He will be ready to die rather than disavow Buddhism as his faith) In this regard, he would revere Lord Buddha as his ultimate teacher.

3) He eliminated Sīlabbata-parāmāsa (another Pali term), his attachment to rites and rituals of nonsense such as animal sacrifice, certain diets, and seriously practice the 5 precepts of Buddhism (the Panca Sila) for the rest of his life. It will be quite mentally tormenting if he were to violate any of the 5 precepts. In this regard, he respect dharmma and the Vinaya (Buddha's rules and guidances for monks and lay persons) as a part of his normal way or life.

It should be noted that, although I use the masculine pronoun "he" and "his" when describe the quality or property of a Sotāpanna, a female can be Sotapanna just fine as well. Living creatures above human beings (like angels, Brahma) can also attain Sotāpannaship. Living creatures below human beings can not attain Sottapannaship due to their lower moral quality of mental streams.