His mind is exalted over him
He harbors pride. He behaves arrogantly. Joyful and content with himself. (See also: 'His mind has exalted over him').
("And Moses called to Hosea son of Nun, Joshua, but to teach you the righteousness of Joshua; I hear that his mind has exalted over him since he was appointed in authority, a Talmudic expression meaning he and Hosea son of Nun, although appointed steward over the community, stand in his righteousness" - Yalkut Shimoni Shmuel A, hint 129, and also: "He did not show him excessive favor lest his mind be exalted over him as an only son" - Agnon / On the Palms of the Locks, Simple Story, 49, and also: "His mind of life was exalted over him in those days and the paved way to his future was open and known before him" - Chaim Be'er / Notzot, 163)
Translation
Expression (Hebrew)
דַּעְתּוֹ זְחוּחָה עָלָיו
Definition (Hebrew)
חָשׁ גַּאֲוָה. מִתְנַהֵג בִּיהִירוּת. שָׂמֵחַ וּמְרֻצֶּה מֵעַצְמוֹ (רְאֵה גַּם:'זָחָה דַּעְתּוֹ עָלָיו').
("וַיִּקְרָא מֹשֶׁה לְהוֹשֵׁעַ בִּן נוּן יְהוֹשֻׁעַ אֶלָּא לְלַמֶּדְךָ צִדְקוֹ שֶׁל יְהוֹשֻׁעַ, שׁוֹמֵעַ אֲנִי שֶׁזָּחָה דַּעְתּוֹ עָלָיו מִשֶּׁנִּתְמַנָּה בִּרְשׁוּת, תַּלְמוּד לוֹמַר הוּא וְהוֹשֵׁעַ בִּן נוּן אע"פ שֶׁנִּתְמַנָּה פַּרְנָס עַל הַצִּבּוּר הוּא עוֹמֵד בְּצִדְקוֹ"- יַלְקוּט שִׁמְעוֹנִי שְׁמוּאֵל א רֶמֶז קכד, וְכֵן:"לֹא הֶרְאֲתָה לוֹ חִבָּה יְתֵרָה כְּדֵי שֶׁלֹּא תָּזוּחַ דַּעְתּוֹ עָלָיו כְּבֵן יָחִיד"-עַגְנוֹן/ עַל כַּפּוֹת הַמַּנְעוּל, סִפּוּר פָּשׁוּט, 49, וְכֵן:"דַּעְתּוֹ שֶׁל חַיִּים הָיְתָה זְחוּחָה עָלָיו בְּאוֹתָם יָמִים וְהַדֶּרֶךְ הַסְּלוּלָה אֶל עֲתִידוֹ גְּלוּיָה וִידוּעָה לְפָנָיו"- חַיִּים בְּאֵר/ נוֹצוֹת, 163)