  A procedure for solving Wheeler-DeWitt equation in Euclidean region,
following step by step the construction of tunneling wave function in
nonrelativistic quantum mechanics by Banks, Bender and Wu, is proposed.
Solutions for a universe satisfying no-boundary condition and a universe
created from 'nothing' are compared to the corresponding solutions for a
particle in a two-dimensional potential well, and effects of indefiniteness of
metric and zero energy in Wheeler-DeWitt equation are discussed.
