What are light pillars?

 chudnov.photo
chudnov.photo
This atmospheric phenomenon occurs when there are low temperatures (below -15 C) and high humidity, which causes frozen ice crystals to form in the air.
Legion Media
Legion Media

Light from things like street lamps and car headlights then get reflected in them, forming these "pillars” of light.

Roman Pinchuk / Sputnik
Roman Pinchuk / Sputnik

These frozen multicolored ‘searchlight’ beams can be observed during the cold times of the year in various parts of Russia, from St. Petersburg to the Far East. 

Petr Kovalyov / TASS
Petr Kovalyov / TASS

Have you ever seen anything like it?