ata eva vibhaktyarthaḥ pramātrekasamāśrayaḥ
kriyākārakabhāvākhyo yukto bhāvasamanvayaḥ
— for this very reason; — the meaning of the case-inflections; — which rests on the one cognizing subject; — termed the relation of action and case-factors; — is tenable, is proper; — the connected ordering of the entities
For this very reason, the meaning of the case-inflections — the connected ordering of entities, termed the relation of action and case-factors — is tenable (only because) it rests on the one cognizing subject.