balam baalvataam chaaham kaamaraagaavivarjitam |
dharmaaviruddho bhooteshu kaamosmi bharatarshabha || 11 ||

I am strength in the strong that is free from desire and attachment, and I am desire in beings that is consistent with duty, O scion of the Bharataas.
balam : strength
baalvataam : in the strong
cha : and
aham : I am
kaama : desire
raaga : attachment
vivarjitam : free from
dharma : duty
aviruddhaha : consistent with
bhooteshu : beings
kaamaha : desire
asmi : I am
bharatarshabha : O scion of the Bharatas
Shri Krishna further adds to the list of Ishvara’s vibhootis in this shloka. He says that Ishvara is the strength that is free of selfishness and attachment, and the desire that is selfless.
What exactly are desire and attachment? Desire is craving for something that we do not have, and attachment is holding on to something that we already have. Selfish actions generate attachment which binds us to the material world. The more selfishly we act, the further we move away from Ishvara acting through us. Only when we act selflessly does Ishvara act through us. Shri Krishna says that Ishvara is that desire which is not selfish, or which is consistent with one’s duty.
Now, when we begin to act in a selfless manner, we develop an inner strength. Conversely, whenever we act out of selfish desire and attachment, we become weak. In the Mahabharata, the Pandavaas knew that they could not target Drona directly because he was too powerful. Instead, they targeted someone whom he was deeply attached to – his son Ashwaththaamaa. The more we turn towards Ishvara, the less we get attached to people and worldly objects.
It is our choice whether we act selfishly for our personal gains, or selflessly with a view to benefit a higher ideal. Any action that harmonizes or integrates brings with it the power of the entire universe. Therefore, Shri Krishna says that he is the strength that is free from selfish desire and attachment.
Shri Krishna concludes the topic of his vibhootis with this shloka. A much more in-depth discussion on this topic is found in chapter ten of the Gita.