Скачать или смотреть Bhagavad Geeta 79 - Chapter 7 - Bannanje Govindacharya (7.9)

7.9
Krishna says - In Earth, he is fragrance (he is in both good and bad scents but we worship him as the one in good scents - always worship as one in positive things even though he is in everything).
Etymology of the word Prithvi - one that is large and expansive. Also called Mrit, Vishwambhara, etc which are all Stree linga words - because Bhagavanta is present in the Earth Stree Roopa, in a way that Abhimani of Earth itself is unaware of his functions within.
Knowing the reason for linga of words in Sanskrita (it is due to Linga of Bhagavanta's Roopas in those things). Knowing the meaning behind practices - Meaning behind practice of Jyotishya.
Krishna is in Earth and specifically in smell that is the quality of Earth.
Punyah Gandhah - “Good scent” or “Pure scent”- Here it refers to the same thing as Sugandha, opposite of Durgandha.
Krishna says - he is in fire, and in fire he is the light and heat (Tejas).
Vibhaavasu - “One who shines specially (Visheshena Bhaasamaana)” - Refers to Agni who is one among the Vasus. There is another Vasu named Vibhaavasu, and Soorya/sun is also called Vibhaavasu. But in this context, it refers to fire/Agni.
Why fire is a good Prateeka - fire purifies everything, and also it eats away sacrifices giving satisfaction that Bhagavanta has accepted offerings.
Tejas - ability to light up (Prakaashakatva), ability to burn (Daahakatva) and ability to cook (Paachakatva).
Parashurama Roopa exists within Agni as well. He is the Avatara that killed all the Tamasa kings and made it convenient for people to do Yajnyas and worship in Agni.
Agni is also necessary to speak (Vak Abhimani). Tejas is the ability to speak.
Krishna says In each Jeeva, he is Prana (breath or life) - Prana Shakti. In Tapaswis (those who contemplate deeply), he is the power of contemplation that makes ideas and thoughts flash.