where would one begin if they wanted to learn reiki

[AngelSeth]

i am sensitive to energies and would like to develop a power of healing

[Nameless]

try googling it. or go on meetup and see if there are any reiki shares in your area, and ask if anyone in the group teaches it.

Make sure to ask their lineage and take an in person class. Although some will say they can do distance attunements, there is nothing like being in person with a certified teacher answering your questions etc. Very important. A google search in your area for teachers is good. There are a few institutions that teach and are ethically sound. Look up William Lee Rand's website. On the front page in the left hand column you'll find teachers by state etc. They'll steer you right. William was my Reiki master and anyone associated with his school is a good choice. Good luck on your journey!