Spatial Phasing is an expert-level element of the Hazama-Ryu Kekkaijutsu, used to pass through an ability user's technique without disrupting it. To be successful, the Kekkaishi must be able to both sense the technique's framework, and align their body with the technique's wavelengths. This is typically accomplished by touching the technique directly for a short period. Once the Kekkaishi is aligned with the technique, they can pass through it. How long the entire process takes seems to depend on several factors: the Kekkaishi's skill at phasing, their familiarity with the technique and the person who created it, as well as the technique's complexity and power. Tokiko Yukimura suggests that by focusing on a technique's construction and limits, information could be gained on the enemy's ability, disposition, and way of thinking.