However, lucid dreams do tend to occur in periods of higher cortical arousal.
Lucid Dreams: Lucid dreams are quite unique.
These dreams usually occur without preparation or intent, although you can train yourself to have lucid dreams.
One of the most common examples of lucid dreams is becoming aware that you're dreaming a nightmare and saying I don't want to dream this anymore and suddenly waking up.
You can use lucid dreams to discover more details and information about a past life, but it'll take practice to master that kind of control over a lucid dream.