For Theravada specifically in stream-enterer till arahat - it is defined as the ninth jhana
Satipatthana Sutta Courses have the same timetable and discipline as 10-day course. The difference is that in the taped evening discourses the Satipatthana Sutta is carefully examined. This is the principal text in which the technique of Vipassana is systematically explained. These courses are open to serious old students who have sat (not including courses served) at least three 10-day courses, have not been practising any other meditation techniques since last 10-day course, have been practising this technique of Vipassana for at least one year, and who are trying to maintain their meditation practice and the five precepts in their daily lives, at the very minimum from the time of applying to the course.
The Way of Mindfulness The Satipatthana Sutta and Its Commentary
To become vegetarian is to step into the stream which leads to nirvana.
If you light a lamp for somebody, it will also brighten your path. He who experiences the unity of life sees his own Self in all beings, and all beings in his own Self.