Karma – Yoga is the saving mantra for humanity in this age . To put it in words of Sri Krsna : ”Devoted each to his own duty , man attains to the highest perfection” ( Gita: 18:15 Karma Yoga is the easiest path for self – realization, provided one practices it sincerely. Whatever may be the nature of work or position of a person in society, by doing one’s allotted work with a sense of self- surrender, one can easily advance in spiritual life. One must consider oneself as a mere instrument in the hands of God. He alone is the doer and we are mere puppets.
Sir krsna says in the fourth chapter of the Giita that this Karma yoga was taught by Him ages ago , in his previous incarnations, to Vivasvan: then , Vivasvan taught it to Manu and Manu to lksvaku . However, in the course of time, this knowledge was lost and hence Sir Krsna taught it again to Arjuna. Arjuna wanted to run away from the battle – field , giving up his ksatrya dharma. He wanted to embrace the life of a mendicant . Sir Krsna dissuaded him and exhorted him to follow Arjuna ‘s own dharma( Gita:2.37)
“Therefore, get up , O son of Kunti, resolve to fight. Sri Krsna quoted the example of Janaka. Janaka while discharging his
duties as a king. Attained rsihood and is therefore called a Rajarsi.
There is another example in the Chandogya Upanisad . A boy Satyakama approached sage Gautama to learn Brahma vidya. The sage sent him away with four hundred cows, and asked him to take care of them. The boy did his job sincerely and implicitly obeyed the instructions of the guru. By doing this seemingly ordinary work , the boy attained spiritual enlightenment. When the boy returned with 1000 cows, the teacher was amazed to see his face bright with Brahma Tejas and proclaimed that Satyakama has attained the supreme enlightenment.
Therefore if a person, weather he be a Bramhmin or ksatrya, Vaisya or sudra does his work with honesty and sincerity, dedicating the fruits of his actions to God and takes recourse to dharma, ultimately attains perfection, which leads to peace, happiness and immortality.