Learn Finnish: Tyhjyyshän on vain tilaa hengittää. - Emptiness is just space to breathe, after all.

To create a pseudo-cleft that emphasizes what emptiness actually is, you could say: Se, mitä tyhjyys on, on vain tilaa hengittää (What emptiness is, is just space to breathe). Notice that mikä becomes partitive (mitä) because it acts as the complement of the verb olla inside the relative clause.

What nuance does the clitic -hän add to tyhjyyshän?

The clitic -hän softens the statement, acting like the English phrases "after all," "you know," or "as we know." It frames the idea of emptiness being just space to breathe as a comforting realization or a shared, understood truth between the speaker and the listener.

Why is tila (space) in the partitive case (tilaa)?

In Finnish, uncountable or abstract concepts are treated as mass nouns. Here, it refers to an undefined amount of "space" or "room" rather than one specific, bounded physical room (like a meeting room or bedroom). Because of this abstract, uncountable nature, the subject complement takes the partitive case.

Can we just attach a basic dictionary-form verb like hengittää directly after a noun?

Yes, this is a very natural way to express purpose or function in Finnish. The basic first infinitive (hengittää) directly follows and modifies the noun phrase tilaa, exactly mimicking the English structure "space to breathe." Another common example you will hear is aikaa ajatella (time to think).