Link:—The Lord, in the neat verse explains, what a striver should do to be free from attachment, to action and its fruit.
mayi sarvan karmani sannyasyadhyatmacetasa
nirasirnirmamo bhutva yudhyasva vigatajvarah
Surrendering all actions to Me, with the mind firmly fixed on the Highest and free from desire and the feeling of meum and disconcertedly doing your duty of waging the war. 30
An Important Fact Pertaining to Surrender
Mayi sarvani karmani sannyasyadhyatmacetasa:-Generally a striver believes that he has to perform obligatory actions, but these lead him to bondage. In order to clarify his misconception, the Lord urges him to surrender all actions to Him, with discriminative insight, without having the least affinity for these. In fact, all actions of the world, are performed by Lord's power. The body, senses, mind, objects and power etc., are, the Lord's and the Lord is his. By thinking so, when a striver performs actions, those actions instead of leading him to bondage, steer him to salvation.
Every person, knows that he cannot keep the body, senses, mind, intellect and material objects etc., under his control, according to his desire. These belong to nature while the self is, a fragment of the Lord (Gita 15/7). So, real surrender consists in accepting these as of the Lord's, rather than his own. Therefore, 'surrender' means, the renunciation of assumed affinity, for objects and actions, by attaching importance, to discrimination.
By the expression 'adhyatmacetasa', the Lord means to say, that one should have a spiritual aim (of God) rather than a mundane one. The man who has fixed his aim, has a discriminative insight. In fact, a man's aim or necessity is, to attain the imperishable, (spiritual) while his desire is to gain the perishable. A striver should decide upon the aim of his life, instead of having a desire. From either the philosophical or the scientific point of view, material objects such as, body etc., cannot be proved to be one's own. They have been bestowed upon him, so that he may make its right use. But, when he lays a claim on them, he is bound. Therefore, when a striver through discrimination, accepts the objects and actions as the Lord's, it means that he surrenders these to Him.
In the verse, the expression 'Adhyatmacetasa, has been used specially. It means. that it is out of ignorance that the perishable body or world, seems to be one's own. If discrimination is applied, the perishable body or world, cannot seem as one's own, only the Lord will appear as his own. Attachment to the world, leads to degradation, while detachment leads to progress (i.e., upliftment). "The two lettered 'Mama' i.e., `this is mine' is death and the three lettered 'Na Mama' i.e., 'this is not mine' is immortality" (Maha Santi. 13/4), Asvamedhika 51/29).
The Lord urges a man to surrender all actions to Him because, he considers the body, senses, mind, intellect, life-breath, material and actions, his own and for himself. But in fact, these are neither his nor can be his. How can the perishable have affinity for the imperishable? 'Therefore, surrender all actions either to the world or to nature or to God, the result will be the some, as the world is an evolute of nature and God, is the Lord of nature.Thus, both the world and nature, belong to God. Therefore, a striver should think, that he is God's and his so-called possessions, are also God's i.e., he should renounce his feeling of mineness to these. In that case, he has to expect nothing, either from the world or from God. The Lord Himself looks after his wants (needs). When a striver, surrenders his body etc., to Him, these do not seem, to him to be his own. If these appear to him to be his own, it means that he has not surrendered them, to Him.