Brahman is the Absolute from which this universe has evolved, in which it lives and to which it returns at the end of a cycle of creation. It is described as ‘sat-cit-ānanda,’ existence-knowledge-bliss absolute.
When a person, through appropriate sādhanās or spiritual practices, realises this Brahman in the inmost depths of his being, his life undergoes a dramatic change, reflecting this inner experience in every action. Such a person called ‘sthitaprajña’ or ‘a man of steady wisdom’, always maintains an equanimous attitude towards all situations of life.
This inner state of mystical experience resulting from realising Brahman and expressing itself outwardly as equanimity has been called ‘brāhmī-sthiti’ by the Bhagavadgītā (2.72). Once attained, this state will continue till the last moment of one’s life.