While I can somewhat appreciate the sentiment that yes, God is invisible, but He holds everything together...it's not completely accurate. We don't see God because we don't seek Him.
You will seek me and find me when you seek me with all your heart.
I love those who love me, and those who seek me find me.
Notice that to find God, we must look for Him. Still, it's not a game of Heavenly Hide-&-Seek. God's not hiding, He's waiting. Once we start searching in the right places, we'll be able to find Him. And I'm convinced that finding Him doesn't mean just knowing that He's there...it's actually using our spiritual eyes to see His glory, His work, and His plan.
Devote yourselves to prayer, being watchful and thankful.
More and more, I'm realizing that my morning Bible study and prayer time just isn't enough. If I want to see God, I must devote myself to building a relationship with Him. I've got to communicate with Him throughout the day, not just during that time I set aside for Him. Although our quiet time together is special, I have a tendency to get lost in my day and not think much about Him. I'm not looking for Him.
One precious woman of faith I know begins her day in prayer, but doesn't say Amen until she goes to bed. She continues her attitude of prayer throughout the day. I need to take a page from her book!
Paul also says we are to be watchful. Let's be on the lookout for Him! We must also remember to be thankful for the blessings He's bestowed upon us. If we're intentionally looking for Him in everything we do and thanking Him for what He's given, we're sure to find Him there.
Scotch tape is a wonderful invention (my daughter would argue it's one of man's greatest!). I do need to be held together, but that's not all. So, I'm asking God to be a Band-Aid...one big enough to remind me of my infirmity and to cause others to ask what happened.