  This paper proposes an approach of the unified consideration of classical and
quantum mechanics from the standpoint of the complex analysis effects. It turns
out that quantization can be interpreted in terms of the Riemann surface
corresponding to the multivalent $\operatorname{Ln}\Psi $ function. A visual
interpretation of "trajectories" of the quantum system and of the Feynman's
path integral is presented. A magnetic dipole having a magnetic charge that
satisfies the Dirac quantization rule was obtained.
