Maranasati meditation.
Certainties:
- My body is very fragile.
- Everyone has to die. I have to die.
- My lifespan is decreasing continuously.
- Death will come whether I am prepared or not.
Uncertainties:
- I don't know when I will die.
- I don't know how I will die.
- At the time of my death, my possessions, knowledge, and experiences will not be able to help me.
- My loved ones will not be able to help me.
- My own body will not be able to help me.