Same thing happened to me the first time I tried using molly. I am convinced it was actually a fake of some amphetamines and caffeine or something. But it still had an effect on me: for the first time in my life I was able to have fun while being surrounded by a crowd of people (it was a music festival). It didn't make me feel dumbed down like alcohol used to. I just felt happy, just wanted to have fun and enjoy the moment. After that I realized I had the sparkle in me. I even knew I could do it without drugs. That was the beginning of my healing process. I've remembered that experience many times later and still come back to it sometimes.
Similar experience here. It triggered the thought in my mind of "this feeling exists". It's weird to explain. It's like MDMA created a reference in my mind and, instead of making me to fall into the process of "I need the drug to be happy", it made me to search for things in life that bring me that feeling of happiness and comfort I got as a reference from the experience. I remember vividly the walk to home after the party, with a beautiful girl holding my arm, the hot shower afterwards...it was the first time in my whole existence that I honestly thought "life is beautiful".
