It is incorrect to say that qualities and attainments needed for temporal progress and spiritual progress are different from each other. The spiritual is only purification of the temporal. Success or failure in both depends on one-pointedness (ekagrata)! For every item of work, one-pointedness is very important. This too is but a spiritual discipline. There are two paths along which this spiritual discipline may proceed: no-pointedness and many-pointedness! No-pointedness is the stage of sleep; it is also called the quality of ignorance (tamoguna). Many-pointedness is the result of the restless quality (rajoguna), turning the vision of the opened eye on creation and its sights. Avoiding both of these, without falling into these two extremes, if the eye is neither closed as in sleep nor opened wide as in the fully awakened stage, but half-opened and directed to the point of the nose, the pure quality (satwaguna) will become one’s nature, and concentration of the mind can also be easily acquired! (Dhyana Vahini, Ch 8)