The aim of this work is to prove that the main properties of Ball Lightning (BL) may be explained by the action of the following physical processes. (1) Coulomb repulsive force between like charges constituting BL; (2) the pseudomagnetic force between like charges constituting BL, the character of pseudomagnetic force (attractive or repulsive) being dependent on the mutual orientation of spins of their charges; (3) the spin supercurrent emerging both between spins of charges constituting BL and between these spins and spins of the quantum objects of neighboring bodies, it transfers the angular momentum associated with spins. The investigations of spin supercurrent were conducted by M. Vuorio, A. Borovic-Romanov and other scientists from 1976.For the achievement of the above mentioned aim in this work the following properties of BL are analyzed: the formation in the streak of lightning channel; the placing of the electric charge on BL surface; the possibility of its “clinging” to electric wires; radiation of light; spherical, ellipsoidal, or ring-like forms; the possibility of recovering the spherical form of BL from significant deformations; the magnetizing of metallic bodies; the emergence of force interaction between BL and magnetized bodies; the evaporation from BL of a substance exhibiting the properties of ferrites; the disappearance of BL as a result of its explosions both in external electric pulse and in the absence of the pulse.