According to the Mayan Calendar, says Jose' Arguelles in his book "The Mayan Factor" (which is the harmonic path representing the equivalence between the Earth's solar calendar and the Galactic Harmonic Grid), the cycle consists in 1,872,000 Kin (days); 5,200 Tun (each of 360 Kin, that is, less than one year every Tun); 260 Katun (of 7,200 Kin each or less than 20 years per Katun); 20 Ahau cycles (composed of 13 Katun or 93,600 days each); 13 Baktun (of 144,000 Kin each.)

The key unit to be referred to is the Baktun cycle: 1 Baktun corresponds to a little more than 394 solar years. When divided into 13 Baktun cycles, the Great Cycle (or the Galactic Sync Radius) replicates the numerical sequence 1-13. The Great Cycle Calendar is obtained by overlapping the series of 13 Baktun to the time period between 3113 BC to AD 2012

The most notable Baktun in our case is the last, because it pertains to the time period in which we currently live. And it is the Baktun of the transformation of matter (AD 1618- AD 2012).
The following events have occurred, or will occur, in this last period:

- Rise and Triumph of Scientific Materialism
- European Conquest of the World
- Industrial Revolution
- Democratic Revolutions in North America and Europe
- Colonization of Africa, Latin America, Asia
- Industrialization of Japan
- Karl Marx and the Rise of Communism
- Communist Revolutions in China and Russia
- World Wars I and II
- Atomic Bomb and Beginning of the Nuclear Age
- Rise of the Third World's Powers (Islam, Mexico, India)
- Global Terrorism and Collapsing of the Technological Civilization
- Earth's Cleansing and Final Age of Global Regeneration
- Age of the Information and Solar Crystals' Technology
- Galactic Synchronization

What appears to be a 'terrestrial' historical process is in fact an interplanetary one. The Earth's role in the Solar System (which, according to the Mayan Cosmology, had a central star – the Sun – and at least ten planets) is to maintain the resonating frequency, along with the other planets, as represented by its own orbit.

Every 394 years a rupture in the Baktun occurs. That is, a cyclical transition from an ending point to a new starting point; a new impulse forms, the one who gives a galactic magnitude to the while model of the Grand Cycle / Galactic Synchronization Beam, which will lead to the resonating transforming conclusion of the total cycle, in AD 2012.
The year 2012 represented in the Mayan cosmology the end of a cycle, a very important date because it marked an unprecedented evolutionary passage.
Arguelles notes common traits in the numerical symbolism of both the Maya and the Book of the Apocalypse (or Book of Revelation):

"...The fact that Jesus was the thirteenth in a group of twelve disciples...and the constant repetition of number seven...a mystical benchmark throughout all the Revelation...there are...the 144,000 chosen ones, which is the same number of days or Kin in a Baktun...considering that we are currently in the thirteenth cycle, or Baktun 12..."

	NAGAS: A Shapeshifting History
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