4.33 O destroyer of enemies, jnana-yajnah, Knowledge considered as a sacrifice; is sreyan, greater; dravyamayat yajnat, than sacrifices reiring materials [Including study of the Vedas, etc. also.] For, a sacrifice performed with materials is an originator of results, [Worldly prosperity, attaining heaven, etc.], but Knowledge considered as a sacrifice is not productive of results. [It only reveals the state of Liberation that is an achieved fact. (According to Advaitism, Liberation consists in the removal of ignorance by Illumination. Nothing new is produced thery.-Tr.)]. Hence it is greater, more praiseworthy.
How?
Because, sarvam, all; karma-akhilam, actions in their totality, without exception; O son of Prtha, parisamapyate, culminate, get merged (attain their consummation); jnane, in Knowledge, which is a means to Liberation and is comparable to 'a flood all around' (cf.2.46). This is the idea, which accords with the Upanisadic text, 'As when the (face of a die) bearing the number 4, called Krta, wins, the other inferior (numbers on the die-faces) get included in it, so whatever good actions are performed by beings, all that gets merged in this one (Raikva). (So it happens) to anyone who knows what he (Raikva) knew' (Ch. 4.1.4).
In that case, by what means is this highly estimable Knowledge acired? The answer is being given: