כִּֽי־יַרְחִיב֩ יְהוָ֨ה אֱלֹהֶ֥יךָ אֶֽת־גְּבֽוּלְךָ֮ כַּאֲשֶׁ֣ר דִּבֶּר־לָךְ֒ וְאָמַרְתָּ֙ אֹכְלָ֣ה בָשָׂ֔ר כִּֽי־תְאַוֶּ֥ה נַפְשְׁךָ֖ לֶאֱכֹ֣ל בָּשָׂ֑ר בְּכָל־אַוַּ֥ת נַפְשְׁךָ֖ תֹּאכַ֥ל בָּשָֽׂר׃
When the LORD thy God shall enlarge thy border, as He hath promised thee, and thou shalt say: ‘I will eat flesh’, because thy soul desireth to eat flesh; thou mayest eat flesh, after all the desire of thy soul.
Read kabbalistic (mystical) interpretation of Deuteronomy 12:20: and classical mystical sources.