Ideya (pronounced ih-dee-yah) are colored, crystalline orbs representing dream energy. The Nightmarens steal this energy from Visitors to further their goal of destroying Nightopia. Each time an Ideya is stolen, Nightopia disappears bit by bit. Ideya represents the Visitor's consciousness in the Night Dimension. Every dreamer possesses five of them, as stated by Owl in NiGHTS: Journey of Dreams, although it is often stolen by Nightmarens on the way to the Night Dimension. The name is a play on the word idea.
The Five Ideya
Red Ideya of Courage
Red Ideya represents Courage. It is the rarest type of dream energy and the only type that the Nightmarens cannot steal. However, in NiGHTS: Journey of Dreams, Wizeman is able to steal the Red Ideya from Helen in the level Bellbridge; Will was able to restore her courage and the Red Ideya. Only a Red Ideya is capable of releasing NiGHTS from imprisonment.
White Ideya of Purity
"This white light... its the White Ideya. This was the purity that was missing from my heart." Will in Journey of Dreams.
"The White Ideya... The reflection of a pure heart. Is this my... heart?" Helen in Journey of Dreams.
White Ideya represents Purity within the visitor's heart.
Blue Ideya of Intelligence
"The Blue Ideya, symbol of intelligence. I can feel it filling my mind." Will in Journey of Dreams.
"The Blue Ideya, which governs intelligence... Another lost piece... of my heart." Helen in Journey of Dreams.
Blue Ideya represents the dreamer's Intelligence.
Green Ideya of Growth
"The Green Ideya, which stimulates growth in the heart. My biggest dream, my future." Will in Journey of Dreams.
"The Green Ideya, a symbol of growth. My future, nurtured by my memories." Helen in Journey of Dreams.
Green Ideya represents Growth and Wisdom.
Yellow Ideya of Hope
Yellow Ideya represents Hope.