I consider this video a must watch for christians
Walt Disney does a very good job of expanding on the understanding of this shape. As well as others
There is a bit more to know than simple cultic association, its a building block of nature "the golden ratio" 1.61803398875
7 Min video
http://www.youtube.com/watch?v=oT_Bxgah9zc
Here's the full 30 min video
http://www.youtube.com/watch?v=YRD4gb0p5RM
11 Moreover the word of the Lord came to me, saying, 12 “Son of man, take up a lamentation for the king of Tyre, and say to him, ‘Thus says the Lord God:
“You were the seal of perfection,
Full of wisdom and perfect in beauty.
13 You were in Eden, the garden of God;
Every precious stone
was your covering:
The sardius, topaz, and diamond,
Beryl, onyx, and jasper,
Sapphire, turquoise, and emerald with gold.
The workmanship of your timbrels and pipes
Was prepared for you on the day you were created.
14 “You
were the anointed cherub who covers;
I established you;
You were on the holy mountain of God;
You walked back and forth in the midst of fiery stones.
15 You
were perfect in your ways from the day you were created,
Till iniquity was found in you.
16 “By the abundance of your trading
You became filled with violence within,
And you sinned;
Therefore I cast you as a profane thing
Out of the mountain of God;
And I destroyed you, O covering cherub,
From the midst of the fiery stones.
17 “Your heart was lifted up because of your beauty;
You corrupted your wisdom for the sake of your splendor;
I cast you to the ground,
I laid you before kings,
That they might gaze at you.
18
“You defiled your sanctuaries
By the multitude of your iniquities,
By the iniquity of your trading;
Therefore I brought fire from your midst;
It devoured you,
And I turned you to ashes upon the earth
In the sight of all who saw you.
19 All who knew you among the peoples are astonished at you;
You have become a horror,
And
shall be no more forever.”’”