[The Flow]:: 自分's a Swordsmanship piloting a body
[Eternal]:: 自分's flow of technique never ends/dies
[Permeation]:: Turns 相手 into a vessel for continuation
[Inevitability]:: Infinite time means 相手's defeat is...
[Inevitable]:: 相手 shall eventually serve as its vessel
[Sword Continuum]: Its attacks never begin nor end—they always were. An endless flow of swordsmanship that transcends its previous limits eternally.
[Origin]: The Body's already dead, so killing it is unecessary, for even if everything in existence ends, the swordsmanship will flow eternally to its infinite purpose w/o a body, & Will eventually permeate through 相手 & disintigrate their will/soul