Psalms 6:6 Kabbalah

כִּ֤י אֵ֣ין בַּמָּ֣וֶת זִכְרֶ֑ךָ בִּ֝שְׁא֗וֹל מִ֣י יֽוֹדֶה־לָּֽךְ׃

For in death there is no remembrance of Thee; In the nether-world who will give Thee thanks?

Read kabbalistic (mystical) interpretation of Psalms 6:6: and classical mystical sources.