…Our, this Krsna consciousness movement is the greatest welfare activities in the human society. We are giving information to every man, without any discrimination of cast, creed, or color, that every human being especially, not only human being, all living entities, including the animals, beasts, birds, trees, aquatics—everyone—they can achieve to the highest perfection of life by this Krsna consciousness. But especially the extra intelligence of the human being can be utilized to realize Krsna. If we don’t do that, we are missing a great opportunity. So our request to everyone is to understand this philosophy of Krsna consciousness. If anyone wants to understand this philosophy through philosophical angle of vision or scientific angle of vision, we have got immense volumes of books. You can read and try to understand what is this great movement, Krsna consciousness. But you can also, without reading books, without taking any trouble, if you simply agree to chant this maha-mantra, Hare Krsna, Hare Krsna, Krsna Krsna, Hare Hare, Hare Rama, Hare Rama, Rama Rama, Hare Hare, you get the same result. Even a child can join. Actually we have experienced that a child, a dog, an animal, everyone takes part in this movement. During the Lord Caitanya’s movement, when He passed through a great forest known as Jharikhanda... Central India there is a great forest. Along with Him, the tigers, the elephants, the deers, everyone danced and chanted Krsna Krsna mantra. It is so nice, and it is so spiritual, the very vibration will immediately enthuse your ecstasy in spiritual consciousness.
…So if we want to have eternal life, full of knowledge and blissfulness, then we must take to Krsna consciousness. (Ratha-yatra lecture San Franscisco June 27, 1971)
The Hare Krishna Movement 