Changes

When we speak of concentrating in the heart in yoga, we are speaking of the emotional centre and that like all the others is in the middle of the body in a line corresponding to the spinal cord. <ref>http://incarnateword.in/sabcl/22/planes-and-parts-of-the-being-xiii#p13</ref>

The heart or emotional centre of the thinking desire mind is the strongest in the ordinary man, gathers up or at least affects the presentation of things to the consciousness and is the capital of the system. <ref>http://incarnateword.in/cwsa/13/yoga-and-human-evolution#p3</ref>