If this world cannot solve the problem, no multiplication of this world can do so, because we must always remember that matter is only an infinitesimal part of the phenomena of nature. The vast part of phenomena which we actually see is not matter. For instance, in every moment of our life what a great part is played by thought and feeling, compared with the material phenomena outside! How vast is this internal world with its tremendous activity! The sense-phenomena are very small compared with it. The heaven solution commits this mistake; it insists that the whole of phenomena is only in touch, taste, sight, etc. So this idea of heaven did not give full satisfaction to all. Yet Nachiketas asks, as the second boon, about some sacrifice through which people might attain to this heaven. There was an idea in the Vedas that these sacrifices pleased the gods and took human beings to heaven.