Through the blood, we enter in through the torn body of Christ into perfection. Not merely living in the faith of the outward works, nor even abiding in the flow of the Spirit, but pressing on to complete consummation and indwelling of Him.
Then shall we know, if we follow on to know the LORD: his going forth is prepared as the morning; and he shall come unto us as the rain, as the latter and former rain unto the earth.
It is here that no one need to teach us, saying, Know the Lord. It may come at other places, but here, there is a knowing in the cloud, and a revelation in the glory.
Above the ark, between the cherubim, the only light of the Holiest of all was God Himself. No source and no supply, no beginning nor end.