That is the spiritual journey in a nutshell. You reach the point where the suffering created by the mind's constant manipulations becomes so suffocating that anything is preferable to it. It takes that level of desperation to leap off the crumbling ledge of certainty, and plunge into the unknown. When you do, your demons will test you. The mind doesn't let go easily. Liberation requires absolute courage and sincerity. When you prove true, you will discover the essence that is who you actually are and nothing will entice you from it.