I also like Tom Campbell's scientific approach. Opening the third eye and being able to remote view or be clairvoyant is all about how the universe works. The universe is based on consciousness, not matter, as many scientists believe. To be able to open your awareness to a higher degree is to still the mind chatter and connect to your inner self, which is made of the same stuff and the whole world. Tom Campbell refers to the cosmic consciousness as data. You're just accessing data and for that you need to clear your mind. Everyone can do it, just like everyone can potentially play the piano, but we need practice. Sahaja yoga can fit into this because it's a tool, like many other, for you to achieve that. Every tool has their set of rules, their way of working. Sahaja and yoga does operate as an Eastern type of religion. If you want to hear the more scientific approach, here's Tom Campbell's lecture, which is long, but really enlightening. It's got some remove viewing techniques which just blew me away.
https://www.youtube.com/watch?v=2Nlbro2MNBs