What's reality?   If two (or more) people can be in the identical setting and circumstance, yet experience them totally differently, what's real?  Is it what we think it is?  Is our reality determined by what we think?  Let's talk about this... Say your husband comes home and is angry, and you think he's angry with you, even if it's really about a situation at work, to you, your husband IS angry with you.  And you may react to that because it's real TO YOU.  

Another example:  If I know that a tree has green leaves they will appear to be green to me, even if to another they all look brown in color.  Or I "see" green leaves on the tree because I "know" that the tree has green leaves and can even see the green leaves when the branches are clearly bare to another's perception.  

 If our thinking determines our experience of reality, by changing our thoughts we can change what's real.  Following the earlier analogy, if someone mentions to us that the leaves look brown, we stop and take a closer look while letting go of our earlier presumption by which we experienced green leaves, and then see that the leaves are brown, our reality has changed.  The leaves are the same, but for us they have transformed from green to brown.   So, the long and short is that by changing our thoughts we changed what's real.  

 In crystal and stone healing work we work with our mind and the mind of the other person to change reality.   We focus our intention and, at the same time, let go of what we "know" to be real or possible. So, we use the stone and maybe combine it with sound and breath and let go of our minds...our thoughts of what is so or not.
 

 Likewise, if we're working with a person who we both know is ill, at the time of the healing we let go of the knowing of "illness".  We stop saying to ourselves that we are healing someone's who's sick or unwell and help the other suspend their "knowing" that they are sick and need healing, which only further solidifies "being ill", and instead let go of all logical knowing.  We open up our minds to a place that could be described as pure potentiality, of pure beingness and "see" the other as healed.  Not BEING HEALED, but AS ALREADY HEALED.  And all this takes place as you work with your stone IN THE MOMENT.