Adyayanam - Starts with listening (reading, seeing, using sense organs). Then, you internally verify its truth or reason. Then you try to apply it in practice and confirm. Use it repeatedly and find ways of using it more effectively and efficiently.
How do you visualize the improvements? Is is the eye of the knowledge within you that finds the improvements. It jnana netra. You can even extend it and says the perception organs of Jnana. These organs develop within you as you become more knowledgeable.
So initial inputs are from the environment. But the final outputs come from within you. You are able to see what others cannot see through your jnana netra, your ability to process your internal knowledge with external information and simulate the system for a long time to come.