Soul Resonance

Soul Resonance is a special technique used by Meisters and Demon Weapons, in which, they synchronize their Souls' Wavelength. By doing so, they can release highly powerful techniques and, more often than not, change the tide of a battle.

Resonating Souls
Resonating Souls is the foundation of Meister and Weapon relationships. Resonation is the act of linking Soul Wavelengths. A meister matches his/her soul wavelength with their Weapon's wavelength. When the wavelength's are synched, this results in a Super-Technique unique to each weapon and meister pair.

Resonating requires both Meister and Weapon to be calm and of one mind. Should one of the souls not be in sync, techniques can not be performed. If a technique is being used and one soul loses focus, the technique will lose power or direction, as seen with Hiba when she uses Icy Blade against Haley. Common reasons for souls not to sync are fear, arguing, stress, etc. In additions to those factors, Hiba couldn't match wavelengths with Shayan because she constantly had fear when her Anti-Demon Healing Wavelength almost erased her confidence when battling with Vincent.

It is possible to resonate with more than one soul at a time, but it is noted to be a hard technique to control and use effectively. Cheyon is the only Meister that is noted to wield and resonate with more than one soul at once.

Chain Resonance
Chain Resonance or Soul Resonance Link, just as it would indicate, is a kind of Resonance that involves a team of Meisters matching their wavelengths with one another in order to empower each other. It is extremely difficult to maintain, unless all the team members can easily keep their souls on a balanced level. There is no set number to the amount of meisters required to perform the Chain Resonance, but it is more powerful yet more difficult in a larger team. Also, Chain Resonance seems to work best with weapon's of similar elements, such as, Frankie and Shayan.

Trivia

 * The meister and weapon (optional) yells out, "Soul Resonance!" before resonating