Chapter 2, Verse 8 – Samkhya Yoga

Naasato vidyate bhaavo naabhaavo vidyate satah;
Ubhayorapi drishto’ntastwanayos tattwadarshibhih.

The unreal hath no being; there is no non-being of the real;
The truth about both has been seen by the knowers of the Truth

After talking about the body, Lord Krishna moves to soul. He says What is changing must always be unreal and that is body. What is constant must always be real and that is soul or Atman. The Atman is invincible and indivisible and its all pervading and ever existing. It is the only Reality.

Extending the interpretation to Mankind’s Life!
Soul or Atman is a part of Brahman or Godliness. Advaitha philosophy says Brahman and Atman are the same. How are Brahman and Atman same? You are the creation of God. When we say, You, it means your soul. When your soul is the creation of God, there is some Godliness in your soul too. That is how soul starts its journey of increasing its Godliness with each birth that it takes, by changing the body. When the soul becomes bigger and bigger in its spirituality, it finally goes to the feet of God, and mergers with the power that has created it. This is the journey of soul. soul is immortal because God is immortal. Soul has the same imprint as God and thus becomes immortal. This is the truth….