I have read that the front of the chakras represent the manifested and the back the pre-manifested. From my own sensations and energy movements I generally believe this to be correct, that when I actively love I am using the front of my heart chakra, or when I actively assert myself I am using the front of my solar plexus or when I feel emotional I am using the front of my sacral chakra.
Most people are centered in the front of their energy system but I seem to be centered in the back instead for some reason.... so yeah I'm not a very active person lol. I guess I spend a lot of time in the 'pre-manifested' state. Which can be confusing...
So I would say it could be like the strands of consciousness from the soul or source enter the back and travel out the front. Not really sure, just hypothesising.