It is the free alone which never changes, and the unchangeable alone which is free; for change is produced by something exterior to a thing, or within itself, which is more powerful than the surroundings.

The whole point is to discipline the mind.

“Blessed are the pure in heart, for they shall see God.” This sentence alone would save mankind, if all books and prophets were lost. This purity of heart will bring the vision of God. It is the theme of the whole music of this universe. In purity is no bondage. Remove the veils of ignorance by purity; then we manifest ourselves as we really are and know that we were never in bondage. The seeing of 'many' is the great sin of all the world. See all as Self and love all; let all idea of separateness go.

Never turn back to see the result of what you have done. Give all to the Lord and go on, and think not of it.

This is the central idea of the Gita- to be calm and steadfast in all circumstances, with one's body, mind, and soul centered at His hallowed feet!

The cause being finite, the effect must be finite. If the cause is eternal the effect can be eternal, but all these causes, doing good work, and all other things, are only finite causes, and as such cannot produce infinite result.

Man in his true nature is substance, soul, spirit.