Have Jenn twist a few arms for details and to validate the intercepts.
Many people believe such stories validate the theory of reincarnation, while others lay claim that it validates their particular religious belief systems.
To validate that joy through an emotion you feel is sometimes difficult, but reading poetry can release that joy, that emotion, and give it validation through tone, if not always with exact words.
If people in your current life have been revealed to you in a past life and are open to participating in a regression, you, too, may be able to validate your past life recollection through their regression sessions.
In order to validate your past life, you may need to become a bloodhound and be relentless in your quest to find some documentation of your past life.