Selah is a Hebrew word found often in the psalms and a few times in Habakkuk. Scholars aren't absolutely certain what it means. It seems to be a musical or liturgical note--maybe a pause or maybe a crescendo. 

We have set aside this day for you to use as your selah. Perhaps you pause here and just review what you have pondered thus far. Perhaps you rejoice here and use this space for shouts of praise. Or maybe you take the opportunity to fill in some gaps in the pages before this one. 

It's your space. Give it meaning.