Five Powers

From A Wheel of Time Wiki

There are five elements that can be affected by the One Power: Earth, Air, Fire, Water, and Spirit, each having its own use and purposes. Channelers are usually strong in one or two of the powers and have less ability in others. But some are strong in as many as three or four of the powers, and very rarely all five.

Men are usually more powerful with earth and fire, and women with air and water, while spirit is balanced equally among them.

Some tasks require the use of multiple powers, for example weather needs water, air and spirit. But simpler weaves such as throwing a fireball require only a single power, in this case fire.

Of all of the powers, Spirit is the only one that can be channeled while sleeping which is how channelers are able to ward their dreams.