Science has come very far in understanding how the human body works. But scientists admit understanding the human brain is still in its pioneering stage. God’s marvelous creation is still a mystery. The ultimate question in neuroscience is: How does the brain work?

Neuroscientists have made considerable progress toward understanding brain architecture and aspects of brain function. We can identify brain regions that respond to the environment, activate our senses, generate movements and emotions. ... But we don’t understand how their interactions contribute to behavior, perception, or memory.

Stanford neurologist Charisse Lichtman, offers a picture to clarify the problem:

But if I asked, “Do you understand New York City?” you would probably respond, “What do you mean?” There’s all this complexity. If you can’t understand New York City, it’s not because you can’t get access to the data. It’s just there’s so much going on at the same time. That’s what a human brain is. It’s millions of things happening simultaneously among different types of cells, neuromodulators, genetic components, things from the outside. There’s no point when you can suddenly say, “I now understand the brain,” just as you wouldn’t say, “I now get New York City.”