The human body is like a chariot and the Atma (Soul) is the charioteer. The many million bodies in the Universe may have different forms and names. But the Atma(Soul) is one and the same. It is essential to recognise the unity that underlies the apparent diversity. For instance, hunger is common to all, though the food through which it is appeased may vary from an emperor to a beggar. Likewise, joy and grief, birth and death are common to all. Atma is common to everyone. Recognising this oneness, you must engage in service. Service as an act of Dharma (righteous duty) can be offered only by the one who is pure in heart, selfless and equal-minded towards everyone (Samatva). All opportunities of service should be regarded as an offering to God and every opportunity to serve should be welcomed as a gift from God. When you serve in this spirit, in due course, it will lead you to attain self-realisation.