This is a 20 minute long track based on 40 hz, which falls under the gamma brainwave category and has been a high topic of study in the field of brainwave entrainment.
Gamma generally ranges from 30 hz to 80 hz, 40 hz being the "key" gamma wave for various reasons which I will explain. There will be a "cherry on top" at the end of this post regarding Christ consciousness and the cerebral spinal fluid.

So now I'm going to cover the 40 hz gamma wave specifically.

MIT discovered that 40 hz sound and/or light flicker can reverse the symptoms of Alzheimer's disease by clearing out amyloid plaque.

40 hz is optimally beneficial for overall healing of one's cognition. Memory, mental clarity, perception of reality etc.
In terms of memory, this can take a more metaphysical bend towards opening one up to the Akashic records, a state of divine remembering, aka epiphany.
It can resonate with the gland known in Latin as "epiphysis cerebri" aka the pineal gland.
40 hz can cause decalcification of various parts of the brain, centrally the pineal gland.

40 hz stimulates the health and production of glial cells, cells which are electro-chemical causing the hormonal/chemical balance of the listener to come back online. Also glial cells produce the myelin sheath which wraps around and protects our nerves, hinting at 40 hz playing a role in any form of neuropathy (neuralgia, nerve damage etc) though 2 hz, 440 hz and 880 hz have also been found to play an important healing role in the nervous system.
Side note:
440 hz isn't the demon 432 hz lovers think it is (I love 432 hz too), it's the intonation among notes that's the culprit which makes modern standard tuning disharmonic but that's a whole post of its own that I've covered before which I'll gladly link you to if you wish.

40 hz reduces inflammation the micro-glia, causing neurological inflammation to decrease over time (repetitious listening).
40 hz enhances synaptic function (clearer and quicker thinking and problem solving), increases the number of astrocytes and increases the diameter of the blood vessels causing for the blood to circulate more optimally.

40 hz has been found through EEG testing to activate the frontal lobe of the brain.
The implications here are enormous given the frontal lobe can only be activated when the amygdala is calm and no longer firing retrogressively towards the reptilian brain.
To clarify, this implies that 40 hz brings one out of trauma loops (aka fight-flight-freeze response) by centering the cerebral activation towards the front of the brain (frontal lobe) where clear thinking, compassion, socializing, and even telepathy, channeling and overall clairvoyance take place in the brain.
The frontal lobe (which 40 hz activates) has direct neurological wiring to the heart-brain and the gut-brain, integrating the three brains of the body into one experience.
The frontal lobe is the physical correspondent to the soma chakra, a chakra located between the third eye and the crown. This chakra plays a huge role in producing the etheric Golden liquid light (Etheric Christos).
This leads me to the cherry on top.
The fact that scientists have found 40 hz triggered the glia-mediated lymphatic system to flush the brain with cerebral spinal fluid (Christ anointing of the body) and clear out waist causing the rhythm of the heart beat (or of any external entrainment) to shuffle the fluid along.
It was concluded by Mitchell Murdock of MIT that since 40 hz caused the arteries to pulse faster it resulted in the increase of cerebral spinal fluid clearing.
That's the scientific conclusion, in spiritual terms we could perhaps call it, the healing/salvation of Christ via 40 hz frequency.

It has been claimed that people experiencing paranormal phenomenon (et's, UFO sightings, contact with spirits or other dimensions) exhibit a strong 40 hz frequency in the brain.

40 hz as you can see has some very direct correlations with the Christos as well however.
It was gamma rays that turned Bruce Banner into the incredible Hulk.
It has even be seen in reality that gamma rays could impact or facilitate biological evolution. Though gamma rays are in regards to electromagnetism and the gamma brain waves are in regards to lower frequencies both correlate through octave scaling and have the same implications.

This track is not recommended if you have a pacemaker, are prone to seizures, are pregnant or are under the age of 18 years old. Do not listen while operating a motor vehicle due to the entrancing entrainment of the track.