There's a misconception implied with the word "Master" when one says "Reiki Master", for it doesn't mean that one is somehow a guru or a master of anything. I do not master, or control, Reiki...rather, I let it master, or guide, me and my life.
Because I'm a Reiki Master, I do my best everyday to be mindful of how I walk the world. I smile at everyone, I go out of my way to help others without wanting anything in return. I spend time in prayer and meditation. Or perhaps I was called to become a Reiki Master because I was already doing these things.
I know that it helps me to ground and center every day. I know that since I made the commitment to dedicate my life to Spirit and to Reiki, and became a Reiki Master/Teacher, that wonderful things happen in my life every day...but again, I was already finding that to be true. After all, Reiki led me to my wonderful husband who I met at a Reiki Share seven years ago when we were both Reiki II Practitioners. We became Reiki Master/Teachers together. We laughed during our two month whirlwind romance about how we were moving at the speed of spirit. (Yes, we got married on the two month anniversary of our first date...and that first date was seven years ago today.)
One difference I have noticed with getting that final attunement is that I can handle more energy flowing through me. It helps when I'm out in crowds or at psychic/spirit fairs. I'm clairsentient and an empath, and I find it helps a lot to have gotten my third level because having that channel opened further allows more energy to flow through me rather than into me, so I'm able to remain more balanced and grounded at all times.
I know that when I relax and trust in Spirit, my life moves more smoothly, I'm less stressed and all of my problems get resolved. I send Reiki to them, and it all works out in wonderful ways. So, being a Reiki Master has nothing to do with mastering anything, rather it has more to do with having faith and allowing Reiki to work through me, following its guidance and trusting in its wisdom.