I have a scientific background, and read lots of books from atheists. The atheists often try to explain everything via brains and neurons.
So I studied a lot of artificial intelligence and neural networks.

But I became slowly more sensitive. You can learn to become sensitive via Tai-chi or Yoga.
You can learn to feel chi/prana that way, and with that you can easily feel auras.
I suggest you start with trees, plants and pets. Pets will also react to you sensing them.

But a great jump in sensitivity came after I encountered some paranormal events.
If you are already sensitive, then you can clearly make out the energy-features that are surrounding it.

You also need to stay well grounded, because the spirits that are around paranormal events want to pull you into their weird world. People that get psychoses are often victims to this.
Note: I have helped a dozen of people to get out of psychoses, by guiding them out of the spirit world, back into the real world.

This made me realize that the atheist models of the brain were complete garbage.
The idea never worked in computers and simulations, except for things that computers could already do anyway. And is against the basic computer science principle that intelligent information can not come out of nothing.
The "halting problem" is a good example of that.

The atheists assumed that random fluctuations could explain everything, while the brain is very well structured and needs strict control to function. Now with the aura and chi as a possible way to interact, there is a way how the brain can form intelligent and stable structures. And we see that in practice how the strength of a spirit of a person determines how healthy and sane a person is.

The field of aura/chi consists of very small lines. These lines form structures. And in biological bodies we see the same thing. Micro-tubules and similar network structures form the basis in which the biological processes are functioning.