A tea stalk floating vertically is called chabashira (lit: tea pillar). Seeing a chabashira, we feel happy, saying “Engi(luck) ga (is) ii (good).”
The origin of this expression is unknown, but some say it is because that the situation is rare. Others say that a pillar for chabashira can be considered the central pillar of a house. We liken a chabashira floating vertically to a house pillar standing vertically, considering it is good.
Whatever the reasons, when you find a chabashira, be happy!
Hope all of us will enjoy our tea lives in 2014:-)