Inputs and outputs, as in external to internal, work in reverse too.
So if we take into our body, mind and soul negative inputs for the exterior world, then it will affect our mind, body and soul in a negative way internally.
If we send to our own mind, body and soul negative inputs internally, the same will happen and we will also send them out into the exterior world, which will affect us and others.
So if we allow our thoughts to dominate, especially the sabotaging ones, then it will affect our outputs internally and externally. If we let the light from our essence and soul be, then we will internally and externally send out positive energies and vibrations that will affect in a positive way our mind, body and soul and that of others.
What we put in, is what we get out, what we send out is what we attract.