Most people, regardless of religion, will say a prayer or blessing over their food before eating. It’s an act of thanksgiving to God for providing the physical nourishment.
I’ve discovered that when I pray in thanksgiving before feasting upon the scriptures, my mind is enlightened while I read and ponder.
You’ve probably had an experience where you read a scripture and it was the VERY spiritual nourishment you needed at that very time. I find this happens more often when I pray in thanksgiving and guidance before partaking of the spiritual nourishment.