The Three-days Setback concept is a Keiko guide-line.
It is especially important in connection with the Three-years-ahead Keiko concept.
Keiko is the Way of Sumoudou. It must be done daily, relentlessly, without hesitation, and pause. A Three-days Setback means that if you fail to do Keiko for one day, you lose the three prior sessions of Keiko. You are set back three days on your Way of Improvement.
Even if you are sick, injured, or incapable of raining, you suffer the setback. Within a week, you erase three weeks of work. Within a month, you erase a quarter of a year of effort.
Therefore, you must never slack.
The goal is to accumulate three years worth of practice.
What this means, is that you start from 0. Each day you put in Keiko you add 1 to the total sum of days trained. For each day you miss, you lose 3 from this total.
Your goal is to get to a 1,000. Once you reach the number of a thousand of days trained, you will stand on top of your efforts and you will be ready for anything.
It is not enough to show up for Keiko. In order to add to the total you must put in a full Power effort in Keiko. Only if you complete full regular Keiko can you increase your total of days trained.
It is a long road to a thousand. It is not easy. It is very hard. Once you do it however, you will be super strong. Nothing will shake you.
The guiding principle of Power in your journey towards the Thousand is the Three-years-ahead Keiko concept.