Karma is a help to salvation as sons are and Karma also expresses virtue and vice in man. We impell one another even acts urge one another.
कर्मदायादवाँल्लोकः कर्मसम्बन्धलक्षणः। कर्माणि चोदयन्तीह यथान्योन्यं तथा वयम्॥