Anartha means... Anartha means that creates my miseries. Material activities will continue to increase my misery. And if you adopt spiritual life, then your material miseries will be gradually decreased, and practically it will be nil. And when we are actually free from material affinity, then your real spiritual life begins.
-Lecture on Bhagavad-Gita 2.58-59 -- New York, April 27, 1966

वेदाविनाशिनं नित्यं य एनमजमव्ययम् ।
कथं स पुरुषः पार्थ कं घातयति हन्ति कम् ॥ २१ ॥
O Pārtha, how can a person who knows that the soul is indestructible, eternal, unborn and immutable kill anyone or cause anyone to kill?
-BG 2.21