2 days ago I had no idea what a Lucid Dream was.

I was having an afternoon sleep. I was woken by my phone ringing but then when back to sleep immediately.
In my dream I just somehow knew I was dreaming. I don’t know how, no apparent signs or reality checks. I just knew it.
I went on to control the dream and do many things I would never have done in a normal dream. Because I knew I had none of the parameters of ‘real life’ holding me back…eg. I was invincible.
I then decided that I wanted to wake up, and did so, with a tiny bit of difficulty.

Prior to this experience I have only ever realised I was dreaming when I felt I was going to be late for a meeting etc. And therefore I have just worked on waking myself up.
It had never occurred to me that I could control my dream. Just imagine the feeling I had when I awoke…. “What the hell was that!?!” – Then I googled ‘controlling dreams’ (fearing I was a freak) only to find this amazing site.

How come I had so much control in my first Lucid Dream? Not even knowing what it was?
How can I have one again? Like my first one, where I needed no reality checks etc??

Thanks in advance.
Mr Dicul