Significance of Sa Upadisesa Nibbana
Sa Upadisesa Nibbana in Theravada refers to two key aspects. First, it describes the state of Nibbana experienced by an arahat while the five aggregates are still present prior to death. Second, it signifies the full extinction of defilements that sotapannas experience, even while the groups of existence remain. This concept underscores the different levels of enlightenment and the experiences associated with Nibbana within the Theravada tradition.
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Buddhist concept of 'Sa Upadisesa Nibbana'
Sa Upadisesa Nibbana in Buddhism represents the state of complete defilement extinction while the five aggregates persist, experienced by sotapannas and arahats before death, allowing for a profound, albeit transitional, realization of enlightenment.
From: Maha Buddhavamsa—The Great Chronicle of Buddhas
(1) Nibbana with the presence of the five aggregates, experienced prior to the death of an arahat.[1]
From: Catusacca Dipani
(1) The state of full extinction of defilements with the groups of existence still remaining, attained and enjoyed by sotapannas.[2]