A most influential dream is the hō'ike na ka pō, a dream that is a "revelation of the night" and often interpreted as a prophecy. Sometimes a visitor comes to the dreamer as a husband or wife, called kāne o kapō or or wahine o kapō. A dream may deliver a special name to a child, called an inoa pō, a "name from the night." Some dreams come on their own (kupu wale), while other dreams are premeditated (no'ono'o mua). 
– Caren Loebel-Fried, Hawaiian Legends of Dreams
Photo from land at Hawaiian Island Retreat, Kapaau, HI.

To understand dreaming in Hawaii it may help to study the beautiful, concise Hawaiian language of dreams such as researched by Caren Loebel-Fried from books, unpublished manuscripts and transcriptions of elder interviews she found in the Bishop Museum Archives and reported in her book Hawaiian Legends of Dreams.

The Hawaiian word for dream, moe'uhane, litteraly means "soul sleep." But in the days of old Hawai'i, people believed the spirit wandered rather than slept during dreams. Through the tear duct, called the lua'uhane, or "soul pit," the spirt slipped out and traveled great distances, having adventures while the body slept. 
– Caren Loebel-Fried, Hawaiian Legends of Dreams
Photo at Hawaiian Island Retreat, Kapaau, HI.