וְשַׂמְתָּ֥ אֶת־הֶחָצֵ֖ר סָבִ֑יב וְנָ֣תַתָּ֔ אֶת־מָסַ֖ךְ שַׁ֥עַר הֶחָצֵֽר׃
And thou shalt set up the court round about, and hang up the screen of the gate of the court.
Read kabbalistic (mystical) interpretation of Exodus 40:8: and classical mystical sources.