The Yoga Sutras of Patanjali
BOOK III

Take, for example, sight. This possesses, first, the power to grasp, apprehend, perceive; second, it has its distinctive form of perception; that is, visual perception; third, it always carries with its operations self-consciousness, the thought: 'I perceive'; fourth sight has the power of extension through the whole field of vision, even to the utmost star; fifth, it is used for the purposes of the Seer. So with the other senses. Perfectly concentrated Meditation on each sense, a viewing it from behind and within, as is possible for the spiritual man, brings a mastery of the scope and true character of each sense, and of the world on which they report collectively.

48. Thence comes the power swift as thought, independent of instruments, and the mastery over matter.

We are further enumerating the endowments of the spiritual man. Among these is the power to traverse space with the swiftness of thought, so that whatever place the spiritual man thinks of, to that he goes, in that place he already is. Thought has now become his means of locomotion. He is, therefore, independent of instruments, and can bring his force to bear directly, wherever he wills.

49. When the spiritual man is perfectly disentangled from the psychic body, he attains to mastery over all things and to a knowledge of all.

The spiritual man is enmeshed in the web of the emotions; desire, fear, ambition, passion; and impeded by the mental forms of separateness and materialism. When these meshes are sundered, these obstacles completely overcome, then the spiritual man stands forth in his own wide world, strong, mighty, wise. He uses divine powers, with a divine scope and energy, working together with divine Companions. To such a one it is said: 'Thou art now a disciple, able to stand, able to hear, able to see, able to speak, thou hast conquered desire and attained to self-knowledge, thou hast seen thy soul in its bloom and recognized it, and heard the voice of the silence.'

50. By absence of all self-indulgence at this point, when the seeds of bondage to sorrow are destroyed, pure spiritual being is attained.

The seeking of indulgence for the personal self, whether through passion or ambition, sows the seed of future sorrow. For this self indulgence of the personality is a double sin against the real; a sin against the cleanness of life, and a sin against the universal being, which permits no exclusive particular good, since, in the real, all spiritual possessions are held in common. This twofold sin brings its reacting punishment, its confining bondage to sorrow. But ceasing from self-indulgence brings purity, liberation, spiritual life.

51. There should be complete overcoming of allurement or pride in the invitations of the different realms of life, lest attachment to things evil arise once more.