Because countless thoughts never leave you alone.
From the moment you wake until the moment you sleep, they pull you in every direction. As long as you keep following them, awakening remains out of reach.
But when one overwhelming challenge stands before you, all the small worries and restless thoughts of everyday life disappear as if they had never existed.
Life gives everyone moments like this.
One of them is the moment before death.
Nothing is greater than death. When death stands directly before you, every trivial concern is swallowed into its immense gravity and vanishes.
So if you are still alive, do not wait for death to free you from thought.
Stake your life on awakening now.