יֻקַּֽח־נָ֣א מְעַט־מַ֔יִם וְרַחֲצ֖וּ רַגְלֵיכֶ֑ם וְהִֽשָּׁעֲנ֖וּ תַּ֥חַת הָעֵֽץ׃
Let now a little water be fetched, and wash your feet, and recline yourselves under the tree.
Read kabbalistic (mystical) interpretation of Genesis 18:4: and classical mystical sources.