וַיִּשְׁמַ֥ע יְהוָ֖ה בְּק֣וֹל אֵלִיָּ֑הוּ וַתָּ֧שָׁב נֶֽפֶשׁ־הַיֶּ֛לֶד עַל־קִרְבּ֖וֹ וַיֶּֽחִי׃
And the LORD hearkened unto the voice of Elijah; and the soul of the child came back into him, and he revived.
Read kabbalistic (mystical) interpretation of I Kings 17:22: and classical mystical sources.