What is "tsunokakushi"

is a traditional headwear worn in Shinto wedding ceremonies in Japan.

Tsunokakushi is a rectangular piece of cloth, which covers the bridal high topknot called Bunkin Takashimada, a kind of Mage, Japanese traditional topknot. It's often made of white silk.

This is traditionally worn to veil the bride's horns of jealousy, ego and selfishness. It also symbolizes the bride's resolve to become a gentle and obedient wife.