I've been pondering trying to trigger them, but I've been a bit spooked by suggestions that I'd have to try to learn tp distinguish dreams from reality.
The article talks about flying. I often will fly in my dreams even if I am not lucid. When I am lucid, I am always able to fly.
One interesting thing you can do when you find yourself lucid dreaming is conducting experiments. You just have to remember what experiments you decided to conduct when you were awake or think of some on the spot. I found if you close your eyes and imagine something, it will be part of the world when you open them.
I found it is easier to become lucid when you are waking up, although by the time you are lucid you won't have much time left to do anything in the dream.
You do need to be quite studious, though-- I've had dreams where I managed to convince myself that that shifting, swirling mass of words and characters probably says something in Russian.
One of my favorites is something I call the "five finger rule." This is a mnemonic for remembering how many fingers you have. Here's how it works: Hold out your hand. Now count your fingers, one at a time. One, two, three, four, five. Five fingers.
Any time you don't get five, you're probably asleep. Obviously this assumes you have five fingers per hand in waking life :)
From what you're saying that's not the case, so I should go ahead and try.
I like lucid dreams as I'm waking up, I get to "fix" the ending of whatever dream I'd had until then.