Werset 3.273.13.23.33.43.53.63.73.83.93.103.113.123.133.143.153.163.173.183.193.203.213.223.233.243.253.263.273.283.293.303.313.323.333.343.353.363.373.383.393.403.413.423.43

All actions are wrought in all cases by the alities of Nature only. He whose mind is deluded by egoism thinks, "I am the doer."

All actions are performed by the qualities of nature, but one whose mind is deluded by ego thinks, I am the doer.

Krishna explains the root of bondage in action. All activity takes place through the qualities (guṇa) of nature (prakṛti). Body, senses and mind are part of this natural world and move according to its laws. But a person deluded by ahaṅkāra, the ego or sense of I, claims these actions as his own and thinks, I am the doer. This false identification is what binds. Traditions differ on how far the self is uninvolved in action, but the verse clearly locates the problem in the ego's claim of ownership.