His and/or his regimes survival really depends on either grinding through Ukraine before Russia is completely incapacitated militarily or in some way freezing the conflict in a way he can sell to the Russian population. If the leaked information is correct then it seems they are slowly waking up to the reality that it'll need massive scale civilian industry and military mobilisation. Alternatively something I've touched on before he could try to engineer some provocation so as to sell that Russia was defending against Western aggression which is used as a justification to pull back to defensive positions in Russia and freeze the conflict with the hope of normalising relations in the longer run with countries which aren't Western leaning like China and India, etc.