By regulative practice one can control the mind, and this is the purpose of the yoga system (abhyasa-yoga-yuktena [Bg. 8.8]). But there is a chance of failure with the yoga system, especially in this age of Kali, because the yoga system uses artificial means. If the mind is engaged in bhakti-yoga, however, by the grace of Krsna one can very easily control it. Therefore Sri Caitanya Mahaprabhu has recommended, harer nama harer nama harer namaiva kevalam [Adi 17.21]. One should chant the holy name of the Lord constantly, for the holy name of the Lord is nondifferent from Hari, the Supreme Person.

By chanting the Hare Krsna mantra constantly, one can fix the mind on the lotus feet of Krsna (sa vai manah krsna-padaravindayoh) and in this way achieve the perfection of yoga. Otherwise, the flickering mind will hover on the platform of mental speculation for sense enjoyment, and one will have to transmigrate from one type of body to another because the mind is trained only in relation to the material elements, or, in other words, to sense gratification, which is false. Maya-sukhaya bharam udvahato vimudhan (Bhag. 7.9.43). Rascals (vimudhan), being controlled by mental speculation, make huge arrangements by which to enjoy life temporarily, but they must give up the body at the time of death, when everything is taken away by Krsnas external energy (mrtyuh sarva-haras caham). At that time, whatever one has created in this life is lost, and one must automatically accept a new body by the force of material nature. In this life one may have constructed a very tall skyscraper, but in the next life, because of ones mentality, one may have to accept a body like that of a cat, a dog, a tree or perhaps a demigod. Thus the body is offered by the laws of material nature. Karanam guna-sango sya sad-asad-yoni janmasu (Bg. 13.22). The spirit soul takes birth in higher and lower species of life only because of his association with the three qualities of material nature.

In conclusion, the Krsna consciousness movement offers the topmost welfare activity for human society. The saner section of human society must therefore take this movement very seriously for the benefit of all humanity. To save oneself from the repetition of birth and death, one must purify his consciousness. Sarvopadhi-vinirmuktam tat-paratvena nirmalam [Cc. Madhya 19.170]. One must be freed from all designationsI am American, I am Indian, I am this, I am thatand come to the platform of understanding that Krsna is the original master and we are His eternal servants. When the senses are purified and engaged in Krsnas service, one achieves the highest perfection. Hrsikena hrsikesa-sevanam bhaktir ucyate [Cc. Madhya 19.170]. The Krsna consciousness movement is a movement of bhakti-yoga. Vairagya-vidya-nija-bhakti-yoga [Cc. Madya 6.254]. By following the principles of this movement, one becomes disassociated from material mental concoctions and is established on the original platform of the eternal relationship between the living entity and the Supreme Personality of Godhead as servant and master. This, in summary, is the purpose of the Krsna consciousness movement.