> In more plain terms, the line above does something like invoke a method called “to_read” on the object (actually `struct`) “Trying”...

In fact, this invokes an associated function, `to_read`, implemented for the `Trying` type. If `Trying` was an instance `Trying.to_read...` would be correct (though instances are typically snake_cased in Rust).

I'll rewrite the line, assuming `syntax` is the self parameter:

    syntax
        .to_read::<&'a heavy>(|like| this.can_be(maddening))
        .map(|_| ())?;

In my opinion, this is honestly not bad.