There is no entire and part. Our sense as the entire consciousness versus part of it. Entireity and part are all appearances in consciousness. Consciousness itself has no entirety or parts. When you think of yourself as entire and part, that is vishish tadduyata. Oneness, a radical oneness, adduyata, non-duality. There is no other. It's not recommended for small people to have ventures today. Which one?
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 7 (Part 2).