Good question Astral
I do think Empaths are natural healers , definitely . . I've never met an empath who didn't have healing qualities or gift of healing in some way. I suppose it doesn't have to take form of spiritual healing but can be something they do to serve others :-)
Sorry your friend is Angry .. in terms of healing in spiritual sense, I think Anger is caused by some imbalance and built up emotions, he could probably do with some healing for the sacral chakra - the body's emotion chakra / energy center ..
Helping him to have an outlet will help, there are some stones that could help him.. in terms of sending healing I think just showing compassion as a friend is healing in itself, he's very lucky to have you
Dragon posted something on cleansing your own space and clearing your aura for yourself , it was a good post, clearing with white light. I think to heal someone else it's a good method to use, to imagine that person bathed in a pure bright white light, letting it completely surround them, seeing it penetrate through every cell in their body and extending out about 4ft.... praying to Angels that they take away all pain, anxiety, fear, feelings of rejection, for them to feel clarity , healed, balanced, for their burdens to be lifted, for them to feel vibrant, happy, healed and energized, and to visualize negative energy being drawn out by this white light, keeping the energy going until you no longer see any more leaving their space, and then sealing the healing around them by visualizing them within a safe protective bubble ... and praying for thanks to the universe and angels for helping them
that is pretty much what I would do if I was not using reiki .. reiki is the same, to be honest. being attuned just means I don't have to visualize as much, I only have to use symbols and hand positions to know it's been sent, whereas visualizing is still very very effective, we all have the capability to send healing, that's so true