The name "Origami" comes from ori, "to fold," and gami, "paper, this ancient art came to japan around 6th century .
Origami suggests; it implies without announcing outright, intimates with out brashness. It exists best in a kind of light the Japanese call ke, a soft, gentle light for intimate occasions. Why use a bright light when you can see in a dim one? Why shout when you can whisper?
Origami is an art of economy. A few simple creases evoke an animal; modify the sequence slightly, and an entirely new beast appears. To the Japanese sensibility, the success of a completed origami figure depends on the creator's eye for form, structure, and proportion. Does it capture the creature's true form, the placement of its head and limbs, the shape of its shoulders and hips? Does it suggest the animal's motion, its stride, glide, or gallop?
Tea ceremony masters received their diplomas specially folded to prevent misuse in case the documents should fall into the wrong hands (Once the paper was opened, it could not be resealed without allowing extra creases to show.) Even today, the expression origami tsuki means "certified" or "guaranteed."
To the mathematician, the beauty of origami is its simple geometry. The mathematician asks: Does the finished design make the greatest use of the existing geometry? Is the folding procedure elegant and pristine, with crisp lines, compact folds, simple and regular proportions? Is there no wasted paper, awkward thickness, or arbitrary fold? Is utility served in each step?
"According to Japanese lore, folding one thousand Origami cranes is truly a labor of love. Tradition holds that the bride & groom who finishes this task, called SENBAZURU, before the wedding day will be richly rewarded with a good and happy marriage. It is belived "tsuru wa sennen" or "the crane lives for a thousand years." Since cranes were also believed to mate for life, they became a perfect symbol for marriage. 
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