According to statistics lightning will strike the earth's surface approximately 100 times a second, these electrical storms produce electromagnetic waves. Discovered by Winfried Otto Schumann, the Schuman Resonance is the phenomena of waves resonating within the cavity of the earth's surface and ionosphere.
While being contained within the earth's resonance studies have unearthed a direct correlation between the brain and earth's magnetic field, the rhythm and pulse of the brain are in fact in tune with the activity within this cavity above the earths surface, in short we are "synchronized" with the Schumann resonance, this resonance stood at a frequency of 7.83hz (alpha/Theta brain wave state) until a spike of 8.5hz was detected in 2014 by Russian space observations. Daily spectrograms published online and available for viewing will show fluctuations of between 1 and 50hz.
The Lincoln university of NZ published a paper under the heading....
"the brain, an electromagnetic system synchronised by the Schumann resonance signal"
"The Stable synchronizing of the brains electromagnetic system has led to thinking, emotion, memory and intelligence. In order to carry out these functions the brain has developed electromagnetic transmitters and receivers in the neurons. The receivers include a phase locked loop system, Ahissar et al. (1997). These phase locked loop system is used in radio receivers. In the human brain it provides an fm radio receiver that non-linearly resonantly interacts with the Schumann resonance signal"
Considering this it is no wonder that being in nature is said to have beneficial effects on ones health and in particular with respect to brainwaves exposure to nature can facilitate in returning brain function to a meditative, healing state (the theta rhythm of 7.83hz) in line with the natural rhythm of the earth.
Conversely the opposite effect may be felt on a subconscious level with prolonged exposure to the multitude of waves within our immediate environment produced by wifi and other emitters, interestingly space shuttles are equipped with a device appropriately titled the "Schumann simulator" to combat the deterioration of an astronauts health while outside our ionosphere and removed from their native frequency.
So the changes and recent rise in the Schumann resonance is said to have a collective change in the human consciousness moving us from theta to the advanced gamma often associated with experienced mediators and a heightened sense of perception, the unity of conscious perception.
We are moving into what the ancients have described as "the great awakening" and in fact we can measure on a practical level such changes within the human condition using “Electroencephalography", according to Wikipedia...
The Schumann resonance is not simply a source for passive recipients to "upgrade" if you will, but rather active participants should interplay indeed rhythmically with the natural rising of the earths frequency by lifting their own frequency through acts of kindness, love and compassion.