When we die we leave everything behind, especially this body we have cherished so much and relied upon so blindly and tried so hard to keep alive. But our minds are no more dependable than our bodies. Just look at your mind for a few minutes.
You will see that it is like a flea, constantly hopping to and fro. You will see that thoughts arise without any reason, without any connection. Swept along by the chaos of every moment, we are the victims of the fickleness of our minds. If this is the only state of consciousness we are familiar with, then to rely on our minds at the moment of death is an absurd gamble.