וָאָשִׂ֥ים שָׁם֙ אֶת־הָ֣אָר֔וֹן אֲשֶׁר־שָׁ֖ם בְּרִ֣ית יְהוָ֑ה אֲשֶׁ֥ר כָּרַ֖ת עִם־בְּנֵ֥י יִשְׂרָאֵֽל׃
And there have I set the ark, wherein is the covenant of the LORD, which He made with the children of Israel.’ .
Read kabbalistic (mystical) interpretation of II Chronicles 6:11: and classical mystical sources.