Kasina Meditation: Concentration Through a Physical Object

Classical Theravada concentration practice — the object, the nimitta, and the path to absorption

What is kasina meditation and how does it build deep concentration?

Kasina meditation is a Theravada Buddhist concentration method from the Visuddhimagga in which the meditator gazes at a simple physical object — earth disk, coloured circle, fire, water — until a stable mental counterpart image (the 'nimitta') arises and can be held in the mind alone. It is the classical route to the jhana absorption states. Evidence is mechanistic; no modern RCTs test kasina specifically.

In Buddhaghosa's fifth-century Visuddhimagga, kasina objects are the first of forty meditation subjects prescribed for developing samadhi. The word means "totality" — the meditator learns to expand a mental image until it fills awareness completely. Modern teachers such as Pa Auk Sayadaw and Leigh Brasington have reintroduced kasina practice to Western students as the most systematic route to concentrated absorption. The practices below map the stages described in both classical and contemporary instruction.