The end of a person's spiritual life can be foreseen.
Some persons never enter a spiritual arena where there is any kind of tangible spiritual experience.
For these people, there is no end to a spiritual life for the spiritual life has never started. For others, a spiritual life that has begun along with a person's physical life, can have a quick demise. One of the first indicators that a spiritual life is headed in the wrong direction is the attitude of invincibility. When any person or any group comes to believe they are invincible, the end is near. The attitude of invincibility brings with it an ego that is self-destructive, an intellect that does not deal with reality, and a heart that ignores each person's need for other human beings.