What is the flying phenomena of the etheric kingdom of a kindred mind come into association gregariously?

The phrase you mentioned seems to refer to a metaphysical or spiritual concept rather than a scientifically recognized phenomenon. It suggests a harmonious interaction or connection among like-minded individuals, possibly implying that such associations create a collective energy or consciousness. This "flying phenomena" could symbolize the elevated state of being or understanding achieved when individuals resonate with each other on a deeper, etheric level. Ultimately, the idea emphasizes the power of community and shared ideals in transcending ordinary experiences.