There has long been a debate if the human energy meridians exist, traditional medicines recognise meridians, Nadirs or energy channels as identified by many ancient medical systems. Even in ancient Europe, when Otzi the ‘iceman’ was found in the Alps frozen for over 5000 years tattoo’s were found to correspond with acupuncture/meridian lines on the body and may have been used so that unskilled people could provide healing to him by following the tattoo marks.

Here is a link to an article reporting on scientists who have found some of the larger human meridians.
http://upliftconnect.com/science-proves-meridians-exist

When you understand that we have energy channels in the body, it becomes easier during certain meditation techniques to encourage energy (Chi, Prana) to flow.