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This use of concentration implies like every other a previous purification; it implies also in the end a renunciation, a cessation and lastly an ascent into the absolute and transcendent state of Samadhi from which if it culminates, if it endures, there is, except perhaps for one soul out of many thousands, no return. For by that we go to the “supreme state of the Eternal whence souls revert not” into the cyclic action of Nature; and it is into this Samadhi that the Yogin who aims at release from the world seeks to pass away at the time of leaving his body.

We see this succession in the discipline of the Rajayoga. For first the Rajayogin must arrive at a certain moral and spiritual purity; he must get rid of the lower or downward activities of his mind, but afterwards he must stop all its activities and concentrate himself in the one idea that leads from activity to the quiescence of status.