The dragon’s form arose from his particular power of control over the waters of the earth and gave rise to many of the attributes singled out by different peoples as the whole myth developed.
The dragon was associated with clouds and believed to be a rainmaker. Its fire-spitting was reminiscent of lightning. Some people thought good dragons protected humans from evil spirits. It was associated with fertility, strength and speed in battle, joy, and robust good health.
The chtonian dragon is a crocodile that represents water. He has the power to overflow the rivers or to dry the crops, both causing misery and death. He eats human flesh like a demon and is covered with hair or fur like a wild beast. His tail is the most important part.
The destructive powers of the dragon derived from its fiery breath, which can devastate whole countries. Dragon’s eyes also have this fiery red quality, sometimes believed to reflect the treasures they guarded. Rain clouds and thunder and lightning were believed to be the dragon’s breath, hence the fire-breathing monster.
In The Flight of Dragons, Peter Dickinson speculates that a dragon was a living lighter-than-airship with a body cavity filled with hydrogen by some unique biochemical processes — processes which produced waste-products that tended to dissolve anything a dragon slept/nested on that.
In Armenian traditions, the fire and lightning god had powers to stay the dragon’s control of the heavens, as could thunderbolts in Macedonian myth. A dead man was thought to become a dragon, while dragons were believed to be the guardians of treasures in burial chambers.
Some dragons had the ability to fly but not all dragons flown. The water dragons for instance usually remain in the seas or lakes but an hybrid form is known to move both in water and the air.
There are good or divine dragons which are frequently attacked by the evil ones. Sometimes they are killed in battle by their adversaries and their blood splashes to the earth.
Fortunately, for humans, this blood makes a good medicine known as “dragon’s blood”. Since this medicine effects miraculous cures on the wounds it is applied to, a correlation was made between “dragon’s blood” and Christ’s healing blood. It is now known that the alleged “dragon’s blood” was actually a compound made from the dried fruits of palm trees.