According to Buddha there is something not subject to destruction, suffering, impurity, bounds, an ending, or a beginning. That is Nibbana.
You must have at least the first jhana attainment to have the Nibbana attainment.
The True Knowledge of Nibbana comes in one mental moment. When one attains a state of purity, illumination is spontaneous.
All people experiencing Nibbana necessarily experience the same thing. This is not the same consciousness, rather it is the same function of consciousness.
To attain Nibbana, all must be balanced. No single event can so balance them. No single deed can directly precipitate Nibbana. A good action by itself will not lead directly to Nibbana. It cannot be obtained by simply developing lovingkindness.
Enlightenment is to be free of memory and perceptions.
Buddha’s intention was to help his disciples attain enlightenment (Nibbana) … he had no intent to bother with those unworthy.
Truth of Nibbana: anyone can find this out by refining concentration.
Nibbana is the fourth reality: it has no cause.
There may be a thousand books on Nibbana. Of the authors, none take care to practice. Nibbana is meant to be known directly. It cannot be communicated by words.
Pari-Nibbana – what happens to the Arahat, the Buddha who dies, thereby reaching Pari-Nibbana. The texts do not answer. They cannot say whether a self ceases, whether process, movement ceases.