וִיהִ֣י בְשָׁכְב֗וֹ וְיָדַ֙עַתְּ֙ אֶת־הַמָּקוֹם֙ אֲשֶׁ֣ר יִשְׁכַּב־שָׁ֔ם וּבָ֛את וְגִלִּ֥ית מַרְגְּלֹתָ֖יו ושכבתי [וְשָׁכָ֑בְתְּ] וְהוּא֙ יַגִּ֣יד לָ֔ךְ אֵ֖ת אֲשֶׁ֥ר תַּעַשִֽׂין׃
At kapag nakahiga na siya, tandaan mo ang lugar na kanyang hihigaan; pagkatapos ay pumunta ka roon, alisan mo ng takip ang kanyang paanan, at mahiga ka; at sasabihin niya sa iyo ang dapat mong gawin.”
Likutei Halakhot
And this is like (Isaiah 41:2)"Summoned him to His service" . Since through charity one can call the good that falls into the lowest level, in the aspect of feet, in the aspect of (Ruth 3:4) "and uncover his feet, and lay down". And likewise hinted in the words of Rabbeinu of blessed memory in another place (Ch. 17) that through charity one wakes up the good that was hidden and concealed in places far from Hashem Yisbarach.