Secrets of Poker #2

[Yerma]

Hi, I have a question for you.

I am playing some micro no limit online. You know, the $50 buy-in tables? And I have $52.50 in front of me with Ah6h in big blind. So, five people plus the small blind call the $0.50 blind bet. I go all-in because I heard somewhere that you can go all-in with almost any two cards here. (Can someone explain that to me?) Also, I like to gamble. But was it the right thing to do?

ps. I got called by a stack that covered mine. He had 66. But I hit my Ace twice for spectacular gambling pay-off!