וַיַּגִּ֨דוּ ל֜וֹ לֵאמֹ֗ר ע֚וֹד יוֹסֵ֣ף חַ֔י וְכִֽי־ה֥וּא מֹשֵׁ֖ל בְּכָל־אֶ֣רֶץ מִצְרָ֑יִם וַיָּ֣פָג לִבּ֔וֹ כִּ֥י לֹא־הֶאֱמִ֖ין לָהֶֽם׃
And they told him, saying: ‘Joseph is yet alive, and he is ruler over all the land of Egypt.’ And his heart fainted, for he believed them not.
Read Kabbalistic (mystical) interpretations of Genesis 45:26: Zohar and classical Jewish mystical sources, free online.