Dave de Vos
I think it's a way of distinguishing between internal and external training that internal training enables you to be stable and powerful even if your physical structure and alignment are compromised.
I don't particularly like this phrasing ... when well connected internally I'm not going to be compromised. No matter the posture or alignment, etc. When I'm 'on' the only way I become compromised is when someone 'better' (internally speaking) disrupts me - then it kind of does not matter 'cause I'm hosed unless I can break away and reset (or get armed).
That again, I suck (in case you didn't know). But in a good way.