Found the following.
This shall be my reading for today.
There's a passage, for instance, describing three ways in which samatha and vipassana can work together to lead to the knowledge of Awakening: either samatha precedes vipassana, vipassana precedes samatha, or they develop in tandem (AN 4.170). The wording suggests an image of two oxen pulling a cart: one is placed before the other or they are yoked side-by-side. Another passage (AN 4.94) indicates that if samatha precedes vipassana — or vipassana, samatha — one's practice is in a state of imbalance and needs to be rectified. A meditator who has attained a measure of samatha, but no "vipassana into events based on heightened discernment (adhipañña-dhamma-vipassana)," should question a fellow meditator who has attained vipassana: "How should fabrications (sankhara) be regarded? How should they be investigated? How should they be viewed with insight?" and then develop vipassana in line with that person's instructions. The verbs in these questions — "regarding," "investigating," "seeing" — indicate that there's more to the process of developing vipassana than a simple mindfulness technique. In fact, as we will see below, these verbs apply instead to a process of skillful questioning called "appropriate attention."
The Place of Vipassana in Buddhist Practice by
Thanissaro Bhikkhu © 1997
http://www.accesstoinsight.org/lib/authors/thanissaro/onetool.html
"There is the case where a monk has developed insight preceded by tranquillity. As he develops insight preceded by tranquillity, the path is born. He follows that path, develops it, pursues it. As he follows the path, developing it & pursuing it — his fetters are abandoned, his obsessions destroyed.
"Then there is the case where a monk has developed tranquillity preceded by insight. As he develops tranquillity preceded by insight, the path is born. He follows that path, develops it, pursues it. As he follows the path, developing it & pursuing it — his fetters are abandoned, his obsessions destroyed.
"Then there is the case where a monk has developed tranquillity in tandem with insight. As he develops tranquillity in tandem with insight, the path is born. He follows that path, develops it, pursues it. As he follows the path, developing it & pursuing it — his fetters are abandoned, his obsessions destroyed.
Yuganaddha Sutta: In Tandem
translated from the Pali by
Thanissaro Bhikkhu © 1998
http://www.accesstoinsight.org/tipitaka/an/an04/an04.170.than.html
"Monks, these four types of individuals are to be found existing in the world. Which four?
"There is the case of the individual who has attained internal tranquillity of awareness, but not insight into phenomena through heightened discernment. Then there is the case of the individual who has attained insight into phenomena through heightened discernment, but not internal tranquillity of awareness. Then there is the case of the individual who has attained neither internal tranquillity of awareness nor insight into phenomena through heightened discernment. And then there is the case of the individual who has attained both internal tranquillity of awareness & insight into phenomena through heightened discernment.
Samadhi Sutta: Concentration (Tranquillity and Insight)
translated from the Pali by
Thanissaro Bhikkhu © 1998
http://www.accesstoinsight.org/tipitaka/an/an04/an04.094.than.html
In the above Sutta, there are 2 types of attainments mentioned.
- internal tranquillity of awareness = Samatha (samadhi - concentration)
- insight into phenomena through heightened discernment = Vipassana
2 types with 2 possible outcomes making a total of 4 combinations. Mathematically = 2 squared = 4
Don't forget the other one !