It has been known in astrology and mythology that the alignment of celestial bodies can influence human life and society in various way. Now we have the physics understanding of such phenomenon.
The planetary alignment can be explained through simple wave theory with time-varying boundary conditions. According to the Quantum vibration theory, solar system is a resonance system where the Sun is the main oscillator of the system. Such oscillation produces wave travelling at the speed of light throughout the Solar system with the frequency of approximately 3 mHz. At this low frequency (or high wavelength), energy can propagates over a long distant through out the planets in solar system with small attenuation.
At the beginning of solar system, planets are locked into orbits by the harmonics of this resonance frequency as demonstrated by the standing wave experiment below: