Matter and spirit are not separate. Matter is an aspect of spirit and exists within spirit. You could say that it is spirit slowed down some. When you lower the vibrational rate, things become denser and more solid. They then become perceivable to the physical senses.

The reason you don't have machines that can yield empirical data about spirit is that the machines are not sensitive enough to detect that data...or the people monitoring the machines are not sensitive enough to be aware of what they are actually observing yet...mainly because they're working within a limited set of mental assumptions.

They have the potential to tap into spirit, but not the intention of doing so...and they receive exactly what they are ready to receive and no more.