I don't think she has any particular goal in mind. She just wants to chill for the most part. I might be forgetting a few things, but from what I can tell, she's only getting involved with the church stuff to help out Eterna and Ink, who are living with her in the same house. If Eterna had moved to a different house with Ink, then I don't think Flum would be doing much of anything right now.