וַיָּבֹ֕א וַיִּסְגֹּ֥ר הַדֶּ֖לֶת בְּעַ֣ד שְׁנֵיהֶ֑ם וַיִּתְפַּלֵּ֖ל אֶל־יְהוָֽה׃
He went in therefore, and shut the door upon them twain, and prayed unto the LORD.
Read kabbalistic (mystical) interpretation of II Kings 4:33: and classical mystical sources.