Where the unclear mind sees only form, lucidity notices trajectories of intention. This enables interception.
Ki flows through conduits of ki such as limbs or weapons. It cannot easily or functionally travel where it is not easy for it to do so.
But what is Ki? What is intention?
Without intention a human cannot generate action.
In-depth-back-up adjusts to contingencies and that’s the way nature works. The universe is not either flat or linear.
The options of potential are almost infinite in possibility.
Because milliseconds count in life and death situations, arts such as iaido are not stage fetishes on how to look impressive, but rather practice in optimizing efficiency in a single moment, which if lost, the opportunity is gone forever. A practical means of capitalizing on the draw where milliseconds count to make the difference between life and death.
Who knows the relationship between ikkyo and iriminage as a response to a shomenuchi or katatetori?
And why are shomenuchi and katatetori amenable to be dealt with by either ikkyo or iriminage?
And what determines the choice?
Do you know the points of practicality that determine why, when the wakazashi is already drawn, a tsuki is the preferred attack but when sheathed, the tsuki is preceded with a shomenuchi?
Whether the first counter becomes ikkyo or iriminage, is reliant on a few millimeters that determine the best technique possible without cooperation. It is determined by the relative positioning with regards to the placement of uke, nage and the trajectory of the attack, an attack being a conclusion of activated intent. Real attackers never cooperate. If anything they will attempt to counter.
The intent should be to remove the attacking weapon.
Instead of trying to remember a million forms, it will make training so much easier if you view all combat as trajectories of intention and refer to the basic kihon as keys wherewith to adapt to the actual range of attacks in place, in the moment, as it is.
Simplicity has immense power over the confused fragmentation of complexity. It’s like trying to “understand ” the insane; you would have to become insane and then your “understanding” will no longer be there. A catch-22. Complexity and deceit are a dangerous entanglement that can entrap even the best.
Fight simply with clear mind. This is obtained in regular, active training whilst paying attention.
Better it is to simply deal with the action at hand and neutralize the factual attack that is happening this moment, instead of worrying about the millions of attacks that “might happen,” but are not in fact happening.
Ikkyo and iriminage, and their relationship to each other practiced with the attacks of shomenuchi and katatetori, is a good way to understand the fine line between the use of techniques and also the decisive moment to intercept and capture a trajectory of intention.
If this does not clarify, then go back to bokken work. Lots of it.
The fundamentals of moving correctly reside in use of the sword.