Does your state of mind affect the way you give Reiki?
Does the state of your body affect the way you give Reiki?
What do you think?

source
I will tell you that when you first learn Reiki the absolute best thing your Reiki teacher can tell you is “no”. Because you are probably already worried enough about where your hands go, whether you are doing it right, whether you look silly, perhaps any one of a bunch of different things.
But, the actual truth is that both those things affect the way you give Reiki. And that is just the plain truth. I also invite people to object and put forward counter arguments, that is the best way we can all clarify our understanding of the Reiki path and hopefully deepen our experience of the wisdom that arises from its practise.
Intention is what drives Reiki.
But, what is it that drives intention? Simple, you. And in-particular your own will power. Emphasis being on power. The more stable and clear your intention, the more stable and clear will the energy of Reiki shine through. The most common metaphor is that of a hose. You are the hose. Your junk food and junk thoughts (self sabotage, gossip, negativity, ill-will..) are like dirt in the hose, blocking it up. The cleaner the hose, the easier the water flows.
It has been suggested, by people like Frank Petter, that Usui (the founder of the Reiki healing system) used to re-attune his students as much as every month. As well as get them to recite the Reiki ideals. Both of these things help wash the pebbles out of the hose.
Hopefully, your Reiki teacher gives you unlimited re-attunements as part of the deal with your Reiki 1, 2 or Masters. I would especially hope this is the case for the particular lineage that still thinks $10,000 means something in the whole master training scheme of things. If not, why not sit down with them and have a chat about whether they think re-attunement is something that supports the ongoing process of Reiki, and whether you can come to some kind of arrangement. Assuming ofcourse they think it does help, ongoing.

What are the Reiki Ideals?
Just for today:
1. I will not use anger
2. I will use kindness
3. I will be full of gratitude
4. I will do my work honestly
5. I will not indulge my worrying mind
source (with some poetic license)