moghaashaa moghakarmaano moghajnyaanaa vichetasaha |
raakshaseemaasureem chaiva prakritim mohineem shritaahaa || 12 ||

With useless desires, useless actions and useless knowledge, the unintelligent take refuge in delusory, devilish and evil nature.
moghaashaa : useless desires
moghakarmaanaha : useless actions
moghajnyaanaa : useless knowledge
vichetasaha : unintelligent
raakshaseem : devilish
aasureem : evil
cha : and
eva : also
prakritim : nature
mohineem : delusory
shritaahaa : take refuge in
After following this chapter so far, we may wonder why has Shri Krishna spent so much time in addressing our erroneous notion of Ishvara? He has done so because erroneous knowledge is the start of a chain of consequences that can either uplift or ruin our life, not just from a spiritual but also material perspective. He illustrates that chain in this shloka.
Consider a child born into a family that gives utmost important to the acquisition of money, but does not emphasize the ethical means of doing so. Such an erroneous knowledge starts a chain of consequences. The child always desires money, and all his actions are directed towards the pursuit of money.
Shri Krishna calls these useless desires and useless actions. All of these eventually lead to increasingly worse character traits in the child. He can undertake delusory actions (gambling), evil actions (stealing) or worse yet, devilish actions (murder), all because of the wrong notion that acquisition of money is paramount.
Broadly, if we start with the erroneous notion that our body and mind is everything and that Ishvara is a distant finite entity, all our desires and actions will be directed towards ensuring that our body can live comfortably. We will continue to make external adjustments such as moving to a new city or changing jobs in search of comfort and security, to continually appease our body and mind, and to gain freedom from sorrow. Since we have not acquired the knowledge of our true nature and Ishvara’s true natures, we will never understand that Ishvara is our ultimate source of security and the ultimate freedom from sorrow.
So we have seen that erroneous knowledge about Ishvara can lead to ultimate ruin. Who then, are those people that, having had the correct knowledge, develop the right type of relationhip with Ishvara? This is taken up next.