Yes - and it is in our biology.
Our biology can be traced back to the first life on Earth.
Living things of every kind - microbes, plants, animals and humans - are structures that are continuously building themselves and most have a body that moves in space - locomotion. At the heart of this phenomenon we have an energy process that is called 'metabolism'.
Plants metabolize energy from light among other things - as human do from what they eat. One thing all forms of life have in common is that their source of energy are not continuous. Plants on a cloudy day have less light and at night have no light, for example. Birds have an abundance of food in the summer and fall, and almost none in the winter. It has been this way since the beginning of life on earth. To answer this almost universal condition every type of metabolic processes includes mechanisms designed to not only adapt to this natural condition of life on Earth, but to also to manage itself as efficient as possible. The periods when the resources are nil are part of the structure of every type of metabolic processes. This is fundamental to our biology.
When humans as a result of the discovery of agriculture, and today - compounded with global transport - we suddenly (in the big-picture of millions of years) are able to have continuous resources of food year around. So not only we can violate this very ancient rhythm BUT WE DO violate it. And from this violation chronic diseases and ills are created.
here is just a few of the ills that are a consequence of metabolic dysfunction:
Diabetes
Obesity
Cardiovascular diseases
Hypertension
strokes
cancer
All kinds of bowel syndromes
And many, many others
 
This does not mean occasional fasting is the cure - although it is very helpful. Understanding metabolic dysfunction must lead to understanding the effect of carbohydrates, especially the effect in relation to their 'quantity' on our metabolism. Fasting engenders what is called KETOSIS and  AUTOPHAGY. Both can be accomplish with a proper diet maintained year around.

This I can answer from personal experience - and also I can refer to the experience of many others.
The Love Which is God - foremost is AMAZING - STEPENDOUS and mind-blowing. It is incomparable and beyond any experience of earthly love. So finding words to describe It can never do It justice. When you experience It you know It is the Love Which is God, and you know that It is your essence and the essence of Reality Itself.
In That Love nothing else can exist but Itself - you know by It that you are Eternal, Non-mortal, that your safety is Perfect and inviolable... And you know that there is not one soul that is not that essence, and that every soul will eventually come to fully awake to that Love.
I had  in this life time the great fortune of having this experience - and I was not on psychedelics.  When it happened it felt like all of my insides suddenly started to melt. I felt like all of my insides had been held together by threads of pain -  threads that were all the horrors of human life, animal life, earth-life, that were stored within me in some subconscious layer - holding together my insides, my guts- and they were an integral part of being a human, part of survival...  ALL of THAT Bundle was deep, deep, deeper than a single lifetime, it was a bundle that was millions of years old - ALL of THAT Bundle was suddenly melting as ribbons of light were replacing my normal human vision. I could not help but sob and weep as all that ancient pain was being lifted off - and this Love was being revealed, revealing its Truth. I never, ever wept like that, it was so deep...
The sense of forgiveness was Total - even Hitler is forgiven in that Love - all history of evils fades like stories children tells each other to playfully scare each other... The sense of UNCONDITIONAL LOVE is Total, total. There is nothing anyone can do to truly become separated from that Love. It holds each and everyone of us right Now - always has and always will.
When you experience the Love Which is God not only you recognize It - but It is more Real than any experience as a human. It is so Real that in comparison - this human state is like a dark dream in black & white - a highly filtered state - so filtered that Reality is completely masked.
Of course this experience was a paramount point in my life and just mentioning it compels me to speak on about it - but this is not the place for that , so I will stick to the topic.
After this experience I came across others that had also experienced this Love; for them mostly during a NDE (Near Death Experience).
In my case I would say I felt completely submerged in that Love - but I know I also just had a good taste of it - meaning that I did not 100% Merged with It as it probably would of been a No-Return event and I would not of returned to this human life.

Princess Arabia - your question touches right on an issue that I have been observing for a few decades.
Believe it or not  - it is a use of terminology that is at the very least confusing - which ends up being truly misleading.
 
To explain this, first I need to describe to you what the Mind really is, and I trust you will recognize what I am talking about. 
At the very least the Mind is the field of every human experiences that ever existed. The experience of the body, the experience of the World, all knowledge ever acquired, every drop of perception that ever existed, etc... and this is the same for every non-human living being. Your experience of being a human occurs in the field of the Mind. A cat experience of being a cat, also occurs in the field of the Mind.
As well to this we could also add all experiences of the soul - all experiences of the afterlife and of the before-life ... 
The Mind is experienced on a personal level but it is a collective field - and ultimately a Universal field of Consciousness ...
Everything you have learned and known in this life is in your Mind, and also you carry beliefs, values, that are important to you, they are programmed in your Mind. Your heart beats without your conscious effort, the knowledge and intelligence that makes your heart beat is in your Mind. When someone has an allergic reaction, it is a response in accord with a program that is held in the Mind.
When a child who is far from his mother, in another country, and goes through a very stressful event, and the mother has a dream and suddenly knows her son is in trouble, that seeming long distance communication occurs in the Mind.
The Mind is massive, colossal, infinite!
Now as a human, we have developed what we know as a language. here we are communicating in English. Anyone who is fluent in two or more languages (I am) knows that you can communicate the same thought in two completely  different forms. The thought before being formed in a specific language exist in the Mind in a form that most people are not aware of. I am aware of certain thoughts before they are put into words - but most people become aware of their thoughts only after they are dressed into words. Words that completely differ from one language to another.
The part of the Mind that works with words and the concepts that are related to them, is the "intellect". The intellect verbalize. When you think of the massiveness of the Mind - what is the intellect correspond to just a tiny, tiny fragment of the Mind. I think we can agree on that.
For some reasons - I believe it comes from the Eastern part of the world - at one point some spiritual teachers started to call what consist of being the "intellect" - the "mind". And when the intellect would stop verbalizing, they called that the "No Mind".
This has led many to believe that they actually leave the Mind - that they go out of the mind into the "No-Mind". And they seem to have no clue that when their intellect is quiet - their Mind with all its intelligence, Its Knowledge, knowing how to drive a car, knowing how to beat a heart is still there with them. They never left their Mind. It is impossible or like Leo said it is a hoax!
I have been observing this phenomenon, and I have friends that thinks this way... and they seem to really believe that you can escape the Mind. They don't understand that the peace they feel when their intellect stops verbalizing is actually the Natural State of the Mind!