This term refers to the process of influencing one’s subconscious mind through repetitive self-talk, affirmations, and mental imagery to achieve desired outcomes. Without evidence, Hill believes in the power of auto-suggestion to reprogram the subconscious mind to align with conscious goals and desires. By consistently feeding the mind with positive thoughts, beliefs, and visualizations, he claims that individuals can override negative conditioning and limiting beliefs, thus paving the way for success and personal growth. In the book, auto-suggestion is described as a key tool for harnessing the creative power of the mind and shaping one’s reality according to their aspirations and ambitions.

This is Hill’s version of a higher power or universal wisdom that individuals can tap into to achieve success and fulfillment in life. Hill describes Infinite Intelligence as an omnipresent force that permeates the universe, providing guidance, inspiration, and solutions to those who seek it. He suggests that individuals can access this infinite source of wisdom through the power of their own minds, particularly through the subconscious. This belief system eventually formed the core of the cult Hill co-created, The Royal Fraternity of the Master Metaphysicians, which treated Think and Grow Rich as a religious text.