Originally Posted by
Avalanche
Yeah, as long as your mantra is somewhat related to your intentions, and you have confidence in your efforts, the mantra should work.
You could say "I am dreaming" all the time or "Tonight, when I fall asleep in my bed and drift off into the dreamworld, be it a jungle or city or sea or woods or castle, I will see my dreamsigns and become lucid", if you have confidence behind the words, either will work.
If you just picked a random mantra and want to pummel it into your head, odds are all you will get is a headache. And just believing that pummeling it into your head will work won't work either, that's blind faith, not confidence.
Even if you just try to emulate the feeling of confidence while you repeat the mantra, that should do the trick. It's what I'm doing, and one of my mantras worked for me within 10 minutes of solid affirmation:
I woke up after a nightmare, when I was previously repeating a mantra "my dreams will be vivid". I then changed it after I woke up in the night to "my dreams will be vivid and nice" and my next dream was really vivid again but this time I was surrounded by my friends.