"Creativity Attacks" during meditation

Sometimes, during my meditation sessions, I have "creativity attacks" i.e. creative thoughts. It can be a piece of poetry or something I would write down in my diary. How should one engage this kind of thoughts? Just observe without reacting or writing them down? If yes, what about the different kinds of Buddhist poetry like Songs of Milarepa, Japanese Haiku or Thera/Theri Gatha. The problem is, on one hand I can see that there are a lot of examples of creativity and poetry in Buddhism, but on the other I also can see my own mind being destructed by these kind of thoughts during meditation.