To be enlightened, you must first burst through your illusions. Neptune rules intuitive development, filmmaking, musical creativity, and oceanic professions. With Neptune, you go beyond worldly boundaries to merge with the cosmos.
Escapist activities like alcoholism, drug addiction, excessive fantasies (like winning the lottery to fix all your problems), and romanticizing bad relationships are Neptune-ruled.
You must go beyond yourself in order to understand Neptune. With Neptune placed in the 2nd house, a person must find true prosperity consciousness rather than prosperity based solely on material possessions. In the 5th house, you could help children to open to their creativity, or you may get lost in romantic illusions. An 8th house Neptune might be under the fantasy that they will win the lottery.
Neptune helps you to step into a larger part of yourself, a part that is totally connected to your Divine Essence. People with strong Neptune in their charts tend to look beyond religious institutions for their spirituality.
In school kids learn that Pluto is the outermost planet in our solar system, but because Pluto's orbit is so eccentric, it sometimes crosses the orbit of Neptune. This makes Neptune the most distant planet from the Sun for a few years!
Neptune's composition is most likely a small core of rocky material about the mass of the Earth. Its atmosphere is mostly hydrogen and helium with a small amount of methane. Neptune's blue color is largely the result of absorption of red light by methane in the atmosphere but there is some additional as-yet-unidentified chromophore which gives the clouds their rich blue tint.
Like a typical gas planet, Neptune has rapid winds, the fastest in the solar system, reaching 2000 km/hour.