Samadhi in Buddhist terms means collected/concentrated mind which can be cultivated by Samatha meditation on any of the 40 meditation objects. Samadhi is basically a mind bhavana aiming at purification of the mind from five hindrances. The concentrated mind free of hindrances is imperturbable, pliant, buoyant, radiance and powerful capable of seeing/penetrating the reality (the arising-passing and ultimate characteristics of mind-matter or nama-rupa) as they really are. Concentrating on a stable object such as breaths/whole body of breaths or kasinas can result in a full meditative absorption (appana samadhi) leading to Jhana attainment which can, by its distinct set of jhana factors, be a successive 4 or 5 material (rupa) jhanas and 4 immaterial (arupa) jhanas or attainments. In many suttas, The Buddha referred 4 rupa jhanas to as right samadhi, which is one of the 8 factors of the noble eightfold path. If the meditation object is not stable or has changing properties like those of 4-element meditation or recollection of the Buddha qualities, the access samadhi (upacara samdhi) which has similar, though less, quality to Jhanic absorption may instead be attained. All of these Jhana or upacara samadhi attainments have one-pointedness of mind as its factor.