My friend is sick, I'm praying for a healing, nothing is happening, am I doing something wrong?
You are not doing anything wrong, your intention is in the right place. What needs to be understood is that illness, mental and/or physical, is multi-dimensional. When you pray for someone's "healing" you are assuming responsibility for knowing what form that healing will take, yours. That's a linear view. We tend to assume, with our linear viewpoints, that healing, continued life in current form, is the best. We can't know that. It is always best to pray, to even wish (with love), "all that's theirs." Some people understand that as Jesus taught it, "Thy will be done." That's good too.
You are not doing anything wrong, your intention is in the right place. What needs to be understood is that illness, mental and/or physical, is multi-dimensional. When you pray for someone's "healing" you are assuming responsibility for knowing what form that healing will take, yours. That's a linear view. We tend to assume, with our linear viewpoints, that healing, continued life in current form, is the best. We can't know that. It is always best to pray, to even wish (with love), "all that's theirs." Some people understand that as Jesus taught it, "Thy will be done." That's good too.