The Janmashtami Vow

Sri Krishna taught us Karma Yoga. He strongly dictated in Gita that a man is bound to get the fruits of his actions. If he has done good actions/deeds throughout his life, he will get good results. The real meaning of Janamashtami vow is to become Karamyogi like Krishna. One should always follow the right path and never tolerate injustice. Karma yoga is action (karma) performed without expectations or thought of reward. This selfless service of karma yoga is the path by which the mind is most quickly purified and its limits transcended. The karma yogi works hard, both physically and mentally.

He seeks to eliminate the ego and its attachments, to serve humanity without expecting rewards, and to see unity in diversity . This enables him to tune to the one underlying divine essence that dwells within all beings. Karma yoga is most suitable for people who have an active temperament. It involves working in the world and giving of oneself in a selfless way. The real essence is to become a selfless Karamyogi.

All advices and sermons Sri Krishna laid down in Gita, every word that he uttered, whether he was talking of Yoga or of stable genius (sthitaprajna), wisdom, always gave inspiration to fight and propelled them against the injustice. The perishability of the body, immortality of the soul, concentration of the mind, and undisturbed equanimity, calm and peaceful disposition of mind – all was to be described and explained in detail by Krishna so that Arjun, caught in the bewitching trap and completely at his wit's end should pick up his arms and pounce upon injustice, otherwise all these utterances were unnecessary right at the beginning of the war of Mahabharata, certainly not so important as to attract the attention of a magnanimous personality like Krishna.
"Dear devotees of Krishna, let us take a pledge today, let us make a resolution that we will not allow even advertently any blemish to defame the noble life of that spotless, innocent, virtuous and realized soul. Let us follow the footsteps of the ideals of great people." Following are the words of Krishna

yad yad acarati shresthasthat devetaro janah
sa yat pramam kurute lokas tadanuvartate

This is thus the preaching of life and the simple solution of finding happiness, peace and prosperity in life.