From Hindupedia, the Hindu Encyclopedia
By Swami Harshananda
Samādhāna literally means ‘keeping the mind well-established in the ātman or God’.
Advaita Vedānta describes a four-fold sādhana generally called as sādhanacatuṣṭaya. The third step, the śamādiṣaṭka includes samādhāna to be the last. It is concentration of mind on the object of contemplation. This word is also used to indicate a suitable or satisfactory reply given to a doubt or a query or an objection raised in philosophical disputations. In a more general sense, it means pacification of an aggrieved party.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore