This meditation, which was taught by the Buddha in several of his discourses, mostly suits people with a visual perception, who thus find it easy and simple to focus on a colour in order to develop mental concentration (samādhi). Kasiṇa, which means a complete, whole disc, is the name for a simple external round disk in order to produce and develop concentration which can lead up to the attainment of the 4 absorptions or ecstasies (jhāna, Sanskrit: dhyāna).
