श्रीमद् भगवद्गीता

मूल श्लोकः

अव्यक्तोऽयमचिन्त्योऽयमविकार्योऽयमुच्यते।

तस्मादेवं विदित्वैनं नानुशोचितुमर्हसि।।2.25।।
 

English Commentary By Swami Sivananda

2.25 अव्यक्तः unmanifested, अयम् this (Self), अचिन्त्यः unthinkable, अयम् this, अविकार्यः unchangeable, अयम् this, उच्यते is said, तस्मात् therefore, एवम् thus, विदित्वा having known, एनम् this, न not, अनुशोचितुम् to grieve, अर्हसि (thou) oughtest.

Commentary:
The Self is not an object of perception. It can hardly be seen by the physical eyes. Therefore, the Self is unmanifested. That which is seen by the eyes becomes an object of thought. As the Self cannot be perceived by the eyes, It is unthinkable. Milk when mixed with buttermilk changes its form. The Self cannot change Its form like milk. Hence, It is changeless and immutable. Therefore, thus understanding the Self, thou shouldst not mourn. Thou shouldst not think also that thou art their slayer and that they are killed by thee.

English Translation of Abhinavgupta's Sanskrit Commentary By Dr. S. Sankaranarayan

2.23-25 Nainam etc. upto arhasi. The weapons etc., that cause destruction, haldly do anything to This. For, being, by nature, exclusively pure Consciousness, remaining without support, having no component parts and being independent, this cannot be destroyed through the process of either assumption of an altogether different nature, or the destruction of the support, or the mutual separation of the component parts, or the rise of an opponent, and so on. Nor the act to going to another body is a new thing for This. For, even when This is [apparently] with a single body, This travels always to different body; for the body does not remain the same even for a moment. By understanding this Self to be as such, you should not lament This.

English Translation Of Sri Shankaracharya's Sanskrit Commentary By Swami Gambirananda

2.25 Moreover, ucyate, it is said that; ayam, This, the Self; is avyaktah, unmanifest, since, being beyond the ken of all the organs, It cannot be objectified. For this very reason, ayam, This; is acintyah, inconceivable. For anything that comes within the purview of the organs becomes the object of thought. But this Self is inconceivable becuase It is not an object of the organs. Hence, indeed, It is avikaryah, unchangeable. This Self does not change as milk does when mixed with curd, a curdling medium, etc. And It is chnageless owing to partlessness, for it is not seen that any non-composite thing is changeful. Not being subject to transformation, It is said to be changeless. Tasmat, therefore; vidivata, having known; enam, this one, the Self; evam, thus, as described; na arhasi, you ought not; anusocitum, to grieve, thinking, 'I am the slayer of these; these are killed by me.'