The definition is prachi in a karma samskar. The conditionings we have done through our own karmas are still with us. That explains the differences amongst all of us. And not just human beings, the entire diversity of nature. So, Krishna says, I am the cause of all this diversity.
In this series of talks, Swami Sarvapriyananda unfolds the highest truths of Vedanta through the study of the Bhagavad Gita (The Song of God).