The Nahel bond is a symbiotic bond between humans and certain types of spren.
It is a mutually beneficent relationship that gives the spren a stronger presence in the Physical Realm and the ability to think and remember more clearly in the Physical Realm. Presumably, it also grants the person bound to the spren a stronger presence in the Spiritual Realm, allowing him to manipulate Stormlight more potently.
The Nahel bond has been known of since the Heraldic Epochs.
|“||They also, when they had settled their rulings in the nature of each bond’s placement, called the name of it the Nahel bond, with regard to its effect upon the souls of those caught in its grip; in this description, each was related to the bonds that drive Roshar itself, ten Surges, named in turn and two for each order; in this light, it can be seen that each order would by necessity share one Surge with each of its neighbor.||”|
–From Words of Radiance, chapter 8, page 6
More recently, Sylphrena has bonded with Kaladin, who is awakening as a Windrunner. Kaladin was made stronger after saying the First Ideal of the Knights Radiant, though Syl was attracted to him long before this occurred. He was further strengthened after saying the Second and Third Ideals.
Pattern has also recently bonded with Shallan, awakening her as a Lightweaver and becoming a Shardblade when she kills and when she unlocks the Oathgate. By the end of Words of Radiance, she has spoken the First Ideal and must now speak only truths.
|“||"Alakavish was a Surgebinder. He should have known better. And yet, the Nahel bond gave him no more wisdom than a regular man. Alas, not all spren are as discerning as honorspren."||”|
|“||"They need to be better, old friend. We all do. The responsibility of what we've been given - whether it be the crown or the Nahel bond - needs to make us better."||”|
–Nohadon, in Dalinar's visions
- ↑ On Syl and the Nahel bond
- ↑ Words of Radiance, 35. The Multiplied Strain Of Simultaneous Infusion
- ↑ 3.0 3.1 3.2 The Way of Kings, 60. That Which We Cannot Have
- ↑ The Way of Kings, 59. An Honor
- ↑ The Way of Kings, 2. Honor is Dead
- ↑ The Way of Kings, 67. Words
- ↑ Words of Radiance, 84. The One Who Saves
- ↑ Words of Radiance, 10. Red Carpet Once White
- ↑ Words of Radiance, 34. Blossoms And Cake
- ↑ Words of Radiance, 86. Patterns Of Light
- ↑ Words of Radiance, 17. A Pattern
- ↑ Words of Radiance, 87. The Riddens
- ↑ On Awakened and the Nahel bond