Something like a sea of glass, similar to crystal, was also before the throne. Four living creatures covered with eyes in front and in back were in the middle and around the throne. The first living creature was like a lion, the second living creature was like a calf; the third living creature had a face like a man; and the fourth living creature was like a flying eagle. Revelation 4:6-7 HCSB
One of my favorite outdoor photos is one that I took at a campground in Tennessee. It was fall and the trees had already started to change to their many shades of reds, yellow, and orange. The trees lined the shoreline of the lake. The lake was perfectly still and created a perfect mirror reflection of the beautiful trees.
In New Testament times glass was very rare, and crystal clear glass was virtually unheard of. John said that there was a sea of glass before the throne of God. The picture that John painted with his words stands in stark contrast to the chaos of this world. In heaven there will be peace and calm like a sea of glass.
Challenge: Know that heaven will be a wonderful peaceful place filled with beauty. Thank God that someday that you will be able to see the wonders of heaven.