The Goose is out !

From the book "The Goose is out - Osho Rajanish"

A great philosophical official, Riko, once asked the strange Zen Master Nansen, to explain to him the old koan of the goose in the bottle.
"If a man puts a gosling into a bottle," said Riko, "and feeds him until he is full-grown, how can the man get the goose out without killing it or breaking the bottle?"
Nansen gave a great clap with his hands and shouted: "Riko!"
"Yes, Master," said the official with a start.
"See," said Nansen, "the goose is out!"

It is only a question of seeing that solves the puzzle.