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

यजन्ते सात्त्विका देवान्यक्षरक्षांसि राजसा: ।
प्रेतान्भूतगणांश्चान्ये यजन्ते तामसा जना: ॥ ४ ॥
Men in the mode of goodness worship the demigods; those in the mode of passion worship the demons; and those in the mode of ignorance worship ghosts and spirits.
-Bhagavad-Gita Chapter 7 Verse 4