pääkäyrässä
Pääkäyrässä is a Finnish term that translates literally to "in the main curve" or "in the primary curve." In a more idiomatic sense, it refers to a state of being in the most active, intense, or critical phase of something. This could be applied to various contexts, from projects and processes to situations or even personal endeavors.
For instance, in a business project, being "pääkäyrässä" would mean the project is in its most crucial
The phrase implies a dynamic situation rather than a static one. It suggests movement through a process