Purity is absolutely the basic work, the bed-rock upon which the whole Bhakti-building rests. Cleansing the external body and discriminating the food are both easy, but without internal cleanliness and purity, these external observances are of no value whatsoever. In the list of qualities conducive to purity, as given by Ramanuja, there are enumerated, Satya, truthfulness; Ârjava, sincerity; Dayâ, doing good to others without any gain to one's self; Ahimsâ, not injuring others by thought, word, or deed; Anabhidhyâ, not coveting others' goods, not thinking vain thoughts, and not brooding over injuries received from another. In this list, the one idea that deserves special notice is Ahimsa, non-injury to others. This duty of non-injury is, so to speak, obligatory on us in relation to all beings. As with some, it does not simply mean the non-injuring of human beings and mercilessness towards the lower animals; nor, as with some others, does it mean the protecting of cats and dogs and feeding of ants with sugar — with liberty to injure brother-man in every horrible way! It is remarkable that almost every good idea in this world can be carried to a disgusting extreme. A good practice carried to an extreme and worked in accordance with the letter of the law becomes a positive evil.