Zodiac Spiritual Sign describes the placement of Neptune in your birth chart. This planet is also known as the Planet of Spirituality. This sign shows how you feel about many issues in life from beauty to spirituality. This sign describes about your intuition, imagination and spiritual conquests in life.Zodiac Spiritual Sign describes your characteristics based on the placement of Neptune in your birth chart. Along with the sun sign and moon sign, the spiritual sign also helps you understand yourself better. In Roman mythology Neptune was the god of the sea. Neptune is related to compassion, deception, idealism and fantasy. This is known as the planet of Illusion. The energy within us can be used for positive or negative purposes. It is totally upto us how we use it. Neptune also makes us aware of our psychic and mental powers.