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The Ishi Spiral

A Foundational Guide

You already know how to work hard. The question is whether you know when to stop.

Most frameworks optimize effort. The Ishi Spiral governs it. It is a discipline of self-governance that sustains performance under pressure without drifting into burnout or grinding past the point where continuation is still justified. The Guide is the Companion to 'Ishi: the Discipline of Determined Intent'.

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About

About

About the Book

Most personal development systems assume the problem is effort or motivation. These systems optimize behavior and celebrate persistence. Then capable people burn out doing everything right.


The problem is not effort. It is governance. When continuation is no longer justified but no structure exists to question it, persistence becomes destructive. The Ishi Guide addresses that failure mode directly.


This guide introduces a four-phase discipline for governing intent under pressure. Decide establishes what matters before momentum builds. Forge develops capacity through structured practice not heroic effort. Persist governs endurance by requiring periodic re-alignment. Reflect closes the loop most systems leave open by examining what the work did to judgment not just whether outcomes succeeded.


The framework draws from Japanese concepts of determined intent (意志 ishi), disciplined practice (修行 shugyō), endurance (我慢 gaman) and reflection (反省 hansei) translated into plain language for practical use. No prior knowledge required.


This guide is for people who already know how to work hard and need to understand when continuing is still justified. It is especially useful for those operating in complex systems where drift is expensive and clarity compounds: senior leaders, engineers, coaches and practitioners navigating sustained load without clear resolution points.


The guide is designed to be revisited not completed. One cycle at a time. One decision at a time. Return when conditions shift or judgment begins to erode.

Author

About the Author

Gareth Holebrook

Gareth Holebrook works with executives, senior engineers, and coaches on the governance of sustained performance.

A former Royal Navy engineer and agile transformation specialist, he has led teams at Visa and partnered with L. David Marquet on Intent-Based Leadership. His work addresses the gap between committing to difficult outcomes and maintaining coherence under pressure without drifting into burnout.

He has completed in dozens of ultra-endurance events, the the Ironman World Championship in Hawaii and the Kiwiman Double Extreme Triathlon. The discipline required to persist without breaking translates directly to leadership, engineering and organisational change.

The Ishi Spiral emerged from this intersection. His book, Ishi: The Discipline of Determined Intent, launched in January 2026 and establishes the discipline of self-governance grounded in Japanese philosophy, deep theory and lived practice.

He writes regularly on Substack at https://substack.com/@garethholebrook and speaks on disciplined persistence in North America and Europe.

Contents

Table of Contents

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