fikir dizisi

listen to the pronunciation of fikir dizisi
التركية - الإنجليزية
train of thought
The flow of thinking

I was on to a really good definition for train of thought, but then I lost my train of thought.

line of thought, continuity of thought, string of ideas
the connections that link the various parts of an event or argument together; "I couldn't follow his train of thought"; "he lost the thread of his argument