(7) At last comes the seventh valley, that of Poverty and Annihilation. "But these words are insufficient to describe it; forgetfulness, deafness, dumbness, fainting--such is the condition of the pilgrim in this valley. One sun causes millions of shadows to vanish. When the ocean is agitated, how can the figures traced on its waters remain? Such figures are this world and the world to come, and he who knows them to be nothing is right. He who is plunged in this sea, where the heart is astray and lost, has by means of his very annihilation found immutable repose. In this ocean, where reigns a constant calm, the heart finds nought but annihilation." Attar also illustrates the Sufi doctrine of annihilation (which resembles the Buddhistic nirvana) by an allegory. "One night," he says, "the butterflies were tormented by the desire to unite themselves with the candle-flame. They held a meeting, and resolved that one of them should go and experiment, and bring back news. A butterfly was sent to a neighbouring house, and he perceived the flame of the candle which was burning within. He brought back word and tried to describe the flame according to the measure of his intelligence; but the butterfly who presided over the assembly said that the exploring butterfly had attained no real knowledge of the candle-flame. A second butterfly went forth, and approached so close to the flame as to singe his wings. He also returned, and threw a little light on the mystery of union with the flame. But the presiding butterfly found his explanation not much more satisfactory than the preceding one. "A third butterfly then flew forth; he was intoxicated with love for the flame, and flung himself wholly into it; he lost himself, and identified himself with it. It embraced him completely, and his body became as fiery-red as the flame itself. When the presiding butterfly saw from afar that the flame had absorbed the devoted butterfly and communicated its own qualities to it; 'That butterfly,' he exclaimed, 'has learnt what he wished to know, but he alone understands it. Only he who has lost all trace and token of his own existence knows what annihilation is. Until thou ignorest thyself, body and soul, thou canst not know the object which deserves thy love.'" The foregoing terrible description of the seven mysterious valleys was well calculated to discourage the birds, and Attar tells us that after hearing it they stood with hearts oppressed and heads bent. "All understood," he says, "that it was not for a feeble hand to bend this bow. They were so terrified by the discourse of the hoopoe that a great number died on the spot where they were assembled. As to the others, in spite of their dismay, they consented to commence the journey. During long years they travelled over hill and dale, and spent a great part of their lives in pilgrimage.