Krishna says his lower nature (𝙖𝙥𝙖𝙧𝙖 𝙥𝙧𝙖𝙠𝙧𝙞𝙩𝙞) is manifested (man) and higher nature (𝙥𝙖𝙧𝙖 𝙥𝙧𝙖𝙠𝙧𝙞𝙩𝙞) is the life-element which is un-manifested. He says that '𝙮𝙤𝙜𝙖-𝙢𝙖𝙮𝙖' (illusion born out of three 𝙜𝙪𝙣𝙖𝙨) separates them and prevents us from knowing HIM (𝙥𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖) as unborn, imperishable (7.25), knower of past, present and future (7.26). Yoga-maya is like a room full of mirrors which reflect us and it is impossible to know what is beyond it. This inability limits us to conclude that every entity is 'manifested' without realising the life-element behind everyone and Krishna calls this foolish (7.24). This is nothing but man-man interaction with disregard to 𝙥𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 which is the path of demons (7.15).
Electricity (energy) flows from a higher voltage point to a lower voltage point energising electrical appliances along the way. Metaphorically, if we take 𝙥𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 as a point of infinite voltage, the energy flow is nothing but the blessings we receive through the cable of 𝙨𝙝𝙧𝙖𝙙𝙙𝙝𝙖, helping us fulfil desires which can be termed as man-paramatma interaction.
It is a state of equilibrium (bliss) when both points have the same voltage and the same is reflected when Krishna says that I consider '𝙟𝙣𝙖𝙣𝙞' as 'Myself'. With 𝙮𝙪𝙠𝙩𝙖-𝙖𝙩𝙢𝙖 (steadfast in 𝙖𝙩𝙢𝙖), he is established in Me alone as the Supreme Goal (7.18). Such a man of wisdom reaches Me realising that all is 𝙑𝙖𝙨𝙪𝙙𝙚𝙫𝙖 (all pervading). Such a great soul is difficult to find (7.19). Essentially, the 𝙟𝙣𝙖𝙣𝙞 overcomes the '𝙮𝙤𝙜𝙖-𝙢𝙖𝙮𝙖' using the same blessings of 𝙥𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 and blissfully realises that all is 𝙑𝙖𝙨𝙪𝙙𝙚𝙫𝙖.
Usually, our goals in the material world involve gathering or filling but the goal of 𝙥𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 involves emptying ourselves and shedding of our sense of attachment, aversion and hatred like melting of a salt doll to become the ocean itself.