So the practice is to connect with the heart, the hara, the ground, or the root chakra. (or somewhere else:-)) But its not like using the mind/brain to travel down to different regions and start thinking from them. That does not promote a harmonious connection. The mind can disassemble and literally become a more watery/airy creature to explore/connect with these regions. Consciousness can transform into heart space and start to vibrate as heart space, or hara space, or root space. Then after you start vibrating and accepting the vibrations at these levels. the mind/consciousness can drop away and literally become these regions. Or the spirits of these spaces.
You can play with the same dynamics of inner vs. outer spaces as well. Great fun will ensue.
I feel that becoming in harmony with all this will lead to all sort of insights into life, the universe, and everything.
Good luck and have a blessed weekend.