The Five Remembrances in Buddhism are:

1. I am of the nature to grow old. I cannot escape aging[1][2][3].

2. I am of the nature to become ill. I cannot escape sickness[1][2][3].

3. I am of the nature to die. I cannot escape death[1][2][3].

4. All that is dear to me and everyone I love are of the nature to change. There is no way to escape being separated from them[1][2][3][4].

5. My actions are my only true belongings. I cannot escape the consequences of my actions. My actions are the ground upon which I stand[1][3][4][5].

These remembrances, found in the Upajjhatthana Sutta, are meant to be contemplated regularly as a way to cultivate mindfulness of life's impermanence and the importance of our actions. They help practitioners overcome attachments, appreciate the present moment, and focus on living ethically[1][3].

Citations:

[1] https://tricycle.org/article/working-with-five-remembrances/

[2] https://plumvillage.org/library/dharma-talks/the-five-remembrances-sr-thuan-nghiem-spring-retreat-2018-05-17

[3] https://en.wikipedia.org/wiki/Upajjhatthana_Sutta

[4] https://www.shambhala.com/the-five-remembrances-an-excerpt-from-alive-until-youre-dead-by-susan-moon/

[5] https://www.elephantjournal.com/2021/06/nothing-is-permanent/