Bhagavad-gītā 18.59

Explain simply

Speaker: Śrī Kṛṣṇa

यदहंकारमाश्रित्य न योत्स्य इति मन्यसे ।
मिथ्यैष व्यवसायस्ते प्रकृतिस्त्वां नियोक्ष्यति ॥५९॥

yad ahaṅkāram āśritya
na yotsya iti manyase
mithyaiṣa vyavasāyas te
prakṛtis tvāṁ niyokṣyati

Word for word (synonyms)

yat
therefore
ahaṅkāram
false ego
āśritya
taking shelter
na
not
yotsya
shall fight
iti
thus
manyase
think
mithyā eṣaḥ
this is all false
vyavasāyah te
your determination
prakṛtiḥ
material nature
tvām
you
niyokṣyati
will engage you

Translation

If you do not act according to My direction and do not fight, then you will be falsely directed. By your nature, you will have to be engaged in warfare.

Purport

Arjuna was a military man, and born of the nature of the kṣatriya. Therefore his natural duty was to fight. But, due to false ego, he was fearing that by killing his teacher, grandfather and friends, there would be sinful reactions. Actually he was considering himself master of his actions, as if he were directing the good and bad results of such work. He forgot that the Supreme Personality of Godhead was present there, instructing him to fight. That is the forgetfulness of the conditioned soul. The Supreme Personality gives directions as to what is good and what is bad, and one simply has to act in Kṛṣṇa consciousness to attain the perfection of life. No one can ascertain his destiny as the Supreme Lord can; therefore the best course is to take direction from the Supreme Lord and act. No one should neglect the order of the Supreme Personality of Godhead or the order of the spiritual master who is the representative of God. One should act unhesitatingly to execute the order of the Supreme Personality of Godhead—that will keep him safe under all circumstances.

What this verse teaches

One works as per his nature anyway

Bhagavad-gītā As It Is by His Divine Grace A.C. Bhaktivedanta Swami Prabhupāda © The Bhaktivedanta Book Trust International.