where is the advantages of Repositories layer betweem controllers and models in laravel

there is a Repositories layer in my laravel project. I am a freshman about laravel. I can not fully understand the advantages of this layer.My colleagues tell me that it is purpose to lower the coupling of the codes. Obviously,it is true.But I also look forward to your comments.

from Newest questions tagged laravel-5 - Stack Overflow http://ift.tt/2vBpJ5H
via IFTTT