There are some people - co-workers, neighbors, associates - that we know informally but are not as close to.
Friendship, on the other hand, is much more. It's familiarity, companionship, intimacy, devotion. It's linking your soul with another. It's doing life together.
We are called to a friendship with Christ.
Our relationship with our savior was never meant to be stale, surface-level, or occasional. We are called to something much deeper than that.
True friendship with God is the only source of pure joy.
Getting to know God should be our top priority. How do we do this? Read. Pray. Meditate - and do all of this with the right mindset - with the goal of simply knowing Him more.
Think about the last thing you prayed about. Were you devoted to your desire/request or to God? Were you determined to get what you wanted or to get closer to God?
"Your father knows what you need before you ask Him." - Matthew 6:8b
God knows what you need before you even lay it at His feet. The point of asking is simply to get to know Him better and draw closer to Him.