The Gita presents atma as a fact, hence in Chapter 17, Verse 23, the phrase ‘om tat sat’ is used, which roughly translates as ‘that which is forever true’. It is the closest we get to the definitive article ‘the’ in Sanskrit. This fact, however, can never be measured, therefore from a scientific point of view it can never be proven. It can, however, be experienced (anu-bhava).
