Säteillään

Could you clarify what you mean by "säteillään"? Do you want a wiki-style article about the Finnish word or phrase (for example its linguistic meaning and usage in Finnish), or is "Säteillään" the title of a specific work (book, film, song, etc.) or a proper noun you have in mind? If you don’t have a specific reference, I can create a concise, neutral article treating it as a Finnish linguistic term describing the form and usage of the verb säteillä and related grammar, up to about 250–300 words.