Their strong needs for privacy can extend to isolation. A belief that energy is limited can lead to compartmentalization of life. There are compartments for work, relationship,and leisure each with their concomitant time limits. Fives can withhold information, time, energy, and even themselves. Internal Terrain Fives have strong feelings just like everyone else, but prefer to deal with them later when safely alone.
Observers feel that they only have so much energy and can be overwhelmed by too much input.
They need blocks of private time to recharge. Yet, Fives can put out enormous amounts of energy if they know what is expected of them. They dislike open-ended unpredictable situations. Fives often feel safer if they do not share all that they know keeping some knowledge in reserve. The world is a dangerous place.