Because, as you can feel, aikido consists of the old-time sword-, spear-, and body-arts [ken-, so-, tai-jutsu], but enlightened by a mind [that is] unified with the [natural] universe: [for that reason] aikido is not there for being victorious [katsu-] among men [nin-gen], neither is it for winning in disputes or in competitions, nor is it [even] for winning without fighting. But, rather, you must win through to your own life-mission becoming part of the life-mission of the universe. You must follow along with all the changes that destiny brings in – and to – the universe. This will only happen if you are well acquainted with complete and upright virtue.
And so, accordingly, when you have realized the Way of Aiki [aikido], you come to understand the innermost logic and workings of the universe: and more – you come to know your own self thoroughly. [What this means is that], for instance, in the movement of even the basic [ippon] sword-kata, you enter entirely with your whole self, and are absorbed completely into the [natural] universe. Then in aikido [you experience] a sword that is a mysterious sword of miraculous skills [myo-ho-ken]. But unless you follow the Way of this Sword in a way that fulfils your fundamental humanity and goodness, it is nothing but the cruel sword [of setsu-nin-to].
- – - O’Sensei, probably audio-recorded by by Masatake Fujita, transcribed by Sadateru Arikawa Shihan, published in Aiki-Shinzui, p.109