Cosmos ,Sanatan Dharma.Ancient Hinduism science.
It is explained in the Vedic texts that in this age of Kali-yuga the process of chanting japa or mantra meditation is much more effective than practicing other spiritual paths that include meditating on the void or Brahman effulgence, or trying to control the life air within the body as in Raja-Yoga. Only a very few can become perfect at such things as raising the kundalini force up through the various chakras, or moving the life air up to the top of the head for full enlightenment and then have it leave the body at the right time to achieve liberation. And meditating on the void becomes useless as soon as there is the slightest distraction, which in this age of Kali-yuga is a continuous thing. Therefore, the most effective means of focusing the consciousness is to concentrate on the sound vibration of a mantra.
There are two mantras that are especially recommended in the Vedic literature. One is omkara or the om mantra, and the other is the maha-mantra, or the Hare Krishna mantra. It is explained that these two mantras can deliver one to the realm beyond material existence. The mantra that is especially meant to be chanted in this age is easy and is actually more directly connected with the Supreme than the sound vibration of omkara because it contains the direct holy names of the Lord. So the mantra for Kali-yuga is the maha-mantra, or great mantra for deliverance, which is Hare Krishna, Hare Krishna, Krishna Krishna, Hare Hare/Hare Rama, Hare Rama, Rama Rama, Hare Hare. As it is said in the Vedic texts:
“These sixteen words–Hare Krishna, Hare Krishna, Krishna Krishna, Hare Hare/Hare Rama, Hare Rama, Rama Rama, Hare Hare–are especially meant for counteracting the ill effects of the present age of quarrel and anxiety.” (Kali-santarana Upanishad)
“All mantras and all processes for self-realization are compressed into the Hare Krishna maha-mantra.” (Narada-pancaratra)
“Chant the holy names, chant the holy names, chant the holy names. In this age of Kali [the age of quarrel and confusion] without a doubt there is no other way, there is no other way, there is no other way.” (Brihan-naradiya Purana 38.126)
The reason that chanting the Lord’s names is such an effective process is because the Lord and His names are identical: they are the same spiritual energy. By chanting Hare Krishna we are in immediate contact with God. If we chant someone else’s name, we cannot enjoy their association because the name and the person are different. For example, by chanting “water, water, water,” we do not quench our thirst because water and the name are two different things. But in the spiritual world everything is absolute. Krishna is nondifferent from His names and, therefore, we can feel His presence simply by chanting His names. This is further elaborated in the Caitanya-caritamrta (Madhya-lila, 17.131-133), which explains that there is no difference between the Lord’s name, form, or personality, and they are all transcendentally sweet. Krishna’s name is the same as Krishna Himself, and is not material in any way. It gives spiritual benedictions and is full of pleasure. But in the material world everything is different. Furthermore, in Caitanya-caritamrta (Adi-lila, 17.22, and the Padma Purana), the Hare Krishna maha-mantra is said to be the sound incarnation of Krishna, and anyone who chants this mantra is in direct association with Krishna and is delivered from the clutches of the material energy.