रसोऽहमप्सु कौन्तेय प्रभास्मि शशिसूर्ययोः।
प्रणवः सर्ववेदेषु शब्दः खे पौरुषं नृषु।।7.8।।
।।7.8।। हे कौन्तेय जल में मैं रस हूँ चन्द्रमा और सूर्य में प्रकाश हूँ सब वेदों में प्रणव (ँ़कार) हूँ तथा आकाश में शब्द और पुरुषों में पुरुषत्व हूँ।।
Here we are receiving jnana or knowledge that Lord Krishna is the essence of specific things. Super sensory illuminating perception is vijnana. The greatness of the Supreme Lord is revealed later but now even the inherent nature of and His being the essence of along with the natural qualities and attributes of different substances are being described as being special potencies and representations of the Supreme Lord. The fact that these special essences and attributes do not manifest on their own is shown by the mentioning of special words such as rasoham apsu meaning He is the essence in water. This essence is to be understood in the case of upasana or spiritual practices. It has been mentioned in the Gita Kalpa that: The attribute of essence in various flavours and its inherent nature are basically due to the perennial principle of dharma or eternal righteousness. The provider and enjoyer of the essence is always solely the Supreme Lord Krishna, who as the essence resides in all living entities. All the empowered demigods are mere reflections of His splendour. The Supreme Lord is the essence of all and should be earnestly sought by those who seek the essence of life. The inherent energy of Prakriti or material nature and all jivas or embodied beings is all ordained by the Supreme Lord and all natural propensities and inherent tendencies are bequeathed by His grace alone. There is nothing whatsoever animate or inanimate throughout all of creation that does not contain the Supreme Lords essence. The Gita Kalpa has stated that: Desires not contrary to righteousness should be engaged in by an aspirant of moksa or liberation from the material existence. For the purpose of elevating ones spiritual development one should only perform activities which are not contradictory to dharma but even the renunciation of such authorised activities are recommended to be relinquished for advanced aspirants. Strength without the debilitating influence of desires and attachments should be achieved. Then by the grace of the Supreme Lord perfection will be attained and the desired goal will be reached. Now begins the summation. Residing in water as sapidity, the Supreme Lord is known as the essence. Residing in the sun and the moon as luster, He is known as illumination. Residing in the Vedas as His very self, He is known as the pranava original sound vibration OM. Residing in the ether as sound Lord Krishna is known as the word.