The typical scientific approach to understand how the brain works is by debating and forming opinions based on ideas and observations. As all of them are based on perceptions, which can be distorted by many factors, they differ from person to person, making it difficult to understand how they work conclusively.
As neuroscience relies on pure data, it is a better bet. It is because of neuroscience that science has learnt more about the human brain in the last two decades than in the entire human history.
But then, as all parts of the brain work together in goal-driven activities as a system, it implies that they work in causal manner, whereas neuroscience relies mainly on correlations. Correlations do not imply causation.
To understand the workings of the brain, it is important to know its causal connections. Once we understand its causal connections, not only it can help us understand how it works, but help us develop new solutions and optimize its performance.
Based on the same, the best way to understand how the brain works is through causation.
The only available causal account of the human brain is the DOS Model. It helps to understand how mind emerges out of the brain in the simplest, most reliable and most conclusive manner.