At the same time, it is a mistake to say that this world is full of happiness and blessings. So it is useless to tell children that this world is all good, all flowers, all milk and honey. That is what we have all dreamt. At the same time it is erroneous to think, because one man has suffered more than another, that all is evil. It is this duality, this play of good and evil that makes our world of experiences. At the same time the Vedanta says, "Do not think that good and evil are two, are two separate essences, for they are one and the same thing, appearing in different degrees and in different guises and producing differences of feeling in the same mind." So, the first thought of the Vedanta is the finding of unity in the external; the One Existence manifesting Itself, however different It may appear in manifestation. Think of the old crude theory of the Persians — two gods creating this world, the good god doing everything that is good, and the bad one, everything bad. On the very face of it, you see the absurdity, for if it be carried out, every law of nature must have two parts, one of which is manipulated by one god, and then he goes away and the other god manipulates the other part. There the difficulty comes that both are working in the same world, and these two gods keep themselves in harmony by injuring one portion and doing good to another.