Lit. Skill, when using the more common transcription. In Kakkai the transcription is also used for Gi, meaning Spirit, Mind.

Gi is the second aspect of Shin Gi Tai.

The Mind aspect is contained in Shin.

The Skill aspect has the following parts:

1. Katachi, which is contained in Tai 2. Technique

Technique cannot be practiced, it stems directly from Katachi, which is part of basic Keiko.