Set the mercy seat atop the ark, and put the Testimony that I will give you into the ark. And I will meet with you there above the mercy seat, between the two cherubim that are over the ark of the Testimony; I will speak with you about all that I command you regarding the Israelites. — Exodus 25:21,22
God told Moses to place the mercy seat on the ark, and there He would meet with His people. But access was limited — only the high priest, once a year, with blood. When Christ died, the veil was torn, and the way into the Holy of Holies was opened. The mercy seat where blood was sprinkled is now accessible to you. Come boldly to the throne of grace.