Final answer:
The Psyche knot is the hairstyling technique that creates a conical shape on the top of the head, resembling ancient Greek hairstyles and symbolizing purity and sophistication.
Step-by-step explanation:
A technique used for formal hairstyling that creates a conical shape is known as a Psyche knot. This style is often associated with ancient Greek styles and is characterized by its distinct shape resembling a cone at the top of the head. The Psyche knot not only holds historical significance, as it is an ancient hairstyle, but it also has been a symbol of purity and sophistication.
While styles like beehive, French twist, and bouffant were popular at different times and created volume or intricate designs, the Psyche knot specifically refers to the conical shape at the top of the head, as was fashionable during the ancient Greek era. This hairstyle involves massed curls or braids that contribute to the conical structure, adding a unique and classical elegance to the overall appearance.