"The idea of reincarnation is actually a concept that you might think would motivate people to contemplate committing suicide in order to leave this life and enter the next quicker. On the other hand, you would never even consider suicide once you understand the principles of karma. The main reason for this is that the act of committing suicide reflects a failure of your soul to understand and learn the lessons of your current incarnation.
When a person contemplates ending his or her life in an unnatural way, it is the result of the soul struggling to learn a lesson that's critical to its evolution to a higher state of being. This means that unless the lesson is learned, the soul won't progress. If the suicide is successful, the soul will be reincarnated into a lesser life that will lead to almost identical difficulties and hardship that must be faced once again."