וַיִּגְוַ֞ע כָּל־בָּשָׂ֣ר ׀ הָרֹמֵ֣שׂ עַל־הָאָ֗רֶץ בָּע֤וֹף וּבַבְּהֵמָה֙ וּבַ֣חַיָּ֔ה וּבְכָל־הַשֶּׁ֖רֶץ הַשֹּׁרֵ֣ץ עַל־הָאָ֑רֶץ וְכֹ֖ל הָאָדָֽם׃
And all flesh perished that moved upon the earth, both fowl, and cattle, and beast, and every swarming thing that swarmeth upon the earth, and every man;
Read kabbalistic (mystical) interpretation of Genesis 7:21: and classical mystical sources.