The five remembrances
https://www.dhammatalks.org/books/Undaunted/Section0021.html#sigil_toc_id_25 https://www.dhammatalks.org/suttas/AN/AN5_57.html https://www.dhammatalks.org/ebook_index.html#beyond_coping https://www.dhammatalks.org/books/BeyondCoping/Contents.html https://www.accesstoinsight.org/tipitaka/an/an05/an05.057.than.html https://mindfull.monster/fiverem.html Buddha advised to meditate on these five daily