Concentration has various meanings. When it is kusala it can
be
the type that is associated with samatha or with vipassana.
QUOTE
Anguttara Nikaya IV.41
Samadhi Sutta
"Monks, these are the four developments of concentration.
Which
four? There is the development of concentration that, when
developed & pursued, leads to a pleasant abiding in the here &
now. There is the development of concentration that, when
developed & pursued, leads to the attainment of knowledge &
vision. There is the development of concentration that, when
developed & pursued, leads to mindfulness & alertness. There
is
the development of concentration that, when developed &
pursued,
leads to the ending of the effluents.
"And what is the development of concentration that, when
developed & pursued, leads to a pleasant abiding in the here &
now? There is the case where a monk -- quite withdrawn from
sensuality, withdrawn from unskillful qualities -- enters &
remains in the first jhana:..... he enters & remains in the
fourth jhana: purity of equanimity & mindfulness, neither
pleasure nor pain. This is the development of concentration
that, when developed & pursued, leads to a pleasant abiding in
the here & now.
"And what is the development of concentration that, when
developed & pursued, leads to mindfulness & alertness? There
is
the case where feelings are known to the monk as they arise,
known as they persist, known as they subside. Perceptions are
known to him as they arise, known as they persist, known as
they
subside. Thoughts are known to him as they arise, known as
they
persist, known as they subside. This is the development of
concentration that, when developed & pursued, leads to
mindfulness & alertness.
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