It is morning here, perhaps I am still sleepy.
Sleepy? Is this is brahman capable of moving b/w pāramārthika and vyāvahārika at will talking? I think this constant movement is straining even the indomitable brahman!
Now I know Tattvavada means Realism.
Well, tattvavāda would mean the philosophy of truth. The basic tenets of the school are: the synthesis of wisdom from entire corpus of vaidika scriptures - without excluding any as karma kāṇḍa - and pāncarātra, itihāsas, and purāṇas convey one supreme self-dependent (svatantra) tattva referred to as Nārāyṇa/Viṣṇu whose name, form, attributes, personality are all real and eternal. He is the creator, sustainer, destroyer, etc identified in the brahmasūtras as brahman and the efficient cause of creation. Lakṣmī, His eternal consort and the consciousness that governs prakṛti (matter, the material cause), the jīvas - infinite in number, and each very unique, matter in its most fundamental form, undifferentiated space and time are all dependent (a-svatantra), yet equally real and eternal principles. To summarize in a sentence: vaidika philosophy that is realist & pluralist (ontologically) and synthesist (epistemologically) with one independent conscious principle, two dependent conscious principles, dependent insentient principles matter/space/time with eternal difference between each of these principles.
Don't want to diverge from the original intent of the thread. So here is a partial rendering of my favorite Kālidāsa composition.
नारायणायेतिसमर्पयामि ।