Heaven Has Been Lost:  

In case you hadn't noticed, the Christians have lost heaven.   Back in the days when the Earth was flat like a three-layered cake, heaven was easy to find.   According to Genesis 1:20 in the Christian Bible, and according to the teachings of the men who formulated Christian theology, it was in the firmament (a flat, solid surface)  above the Earth where the birds fly.  

When it was discovered that the Earth was round, the new evidence challenged this small piece of literal, irrefutable, Christian, absolute truth.   The church leaders began by murdering the man who first disclosed this fact, Nicholas Copernicus, and then by severely restricting the work of the man who confirmed Copernicus's findings.   When murder and punishment didn't keep the truth from being true, they developed a new strategy -- Lies of Omission.   All references to Genesis 1:20 and all questions about where heaven is located were moved into the category called, the "unmentionables."  

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A Brief Detour into the Land of the Unmentionables

Are you aware that giving a false impression by withholding the truth is just as much of a lie as is intentionally making a false statement.   The difference is in the technique and not in the intention or in the result.  
Reference:   The biggest Lie About Lies  

As a point of reference, here are two more Christian unmentionables:   The Bible in  ______ says that Eve was the first woman.   In  ____ it also says that her son Able went out into the world and found a wife.   

Here's a much more relevant unmentionable:   Genesis 2:7    And the Lord God formed man of the dust of the ground and breathed into his nostrils the breath of life; and man became a living soul.   This Biblical passage describes an act of God and clearly states that life as an individual human being begins at first breath.   In defiance of their own absolutely and irrefutably-true, literal-word-of-God, Christian Bible, and without any scientific evidence to back them up, and without any Biblical support whatsoever, the forced motherhood peddlers claim that an individual human life begins at conception.   Why is this important?   Because Genesis 2:7  throws a machine-stopping monkey wrench into the wheels of the greatest Christian cash cow since the sale  of indulgences ended.   Thus it is the number one "unmentionable."    

One more sidetrack and then we'll get back to finding heaven:    Are you aware that there is nothing in the Christian Bible that precludes reincarnation as a possibility?   And that 2,000 years ago, reincarnation was a common belief in the geographical area where Jesus preached his ministry?   And that reincarnation was almost certainly the first unmentionable.  

Reincarnation (multiple Earth lives) became unmentionable because it challenged money-generating, Christian theology.   It challenged God's Conception Magic Act.   It challenged the fairytale called Original Sin, and it challenged the church's ability to sell Indulgences.   In other words, mentioning reincarnation was bad for business.   It got between the church leaders and money.      Money!   Money!   Money!  

Speaking of money, here's the primary unmentionable of the present-day,  ego-atheist money worshipers.   It's called:  How to Make money by Lending Illusions:
http://www.TruthSpeaker.net/dysfunctional-banking-system.html#LendingIllusions

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OK,  Back to Finding Heaven

Because we have no evidence to support the existence of Christianity's physical heaven above the clouds or anywhere else, perhaps a little speculation and few best guesses are in order.   Actually, that's about all we do have.  

Ok, what if heaven is a sate of being and not a physical place?   What if heaven is some place or some thing we are already in and/or something that  we just don't recognize?   Could this be similar to other aspects of life the we see every day but don't recognize, such as:   Planet Earth is the Garden of Eden  or  There is a God-Self within each of us   or   With our thoughts, attitude and emotions, we are co-creators with Creator-God?  

What if heaven is in the ninety-five percent of the universe that is not perceivable by human senses or by current human technology.   We call this portion of the universe dark matter and  dark energy.    

Dark Energy / Dark Matter:   The latest astronomical findings indicate that, of all the matter and energy that make up the universe, only about five percent is perceivable to human senses or by present-day, scientific instruments.***   The evidence indicates that what appears to humans as empty space is actually, to use one astronomer's words, "a seething stew of energy and matter."   What do you suppose is in that invisible ninety-five percent of the universe?   Is it possible that our lack of knowledge and understanding could be leading us to draw erroneous conclusions about several universal mysteries, mysteries such as:   who and what we are  --  about the origin and the nature of physical life here on planet Earth  --  and about what happens to us after our body dies.   When we do find out what's in that mysterious ninety-five percent, that eye-opener will have a profound effect upon our understanding of the nature of reality.    

***   Reference:     Readers are invited to enter the words "Dark Matter" in any Internet search engine.   There, you'll find extensive data on this topic.   For example, on December 26, 2009,  the Google search engine registered over three million websites that reference "dark matter.