पदार्थान्वयभाषाः - If Urvashi (electric energy or the dawn) bearing light and nourishment for the coming day were to rise from the depth of space or darkness of night, and stricken with love as catalytic agent, were to visit the lover’s chamber, the heart of the cloud or the sun on the rise, then she would be struck with three way charge of positive, negative and consummative ‘vaitasa’, process of nature’s evolutionary activity. Day and night, all time? (‘Vaitasa’ is the name of a process of movement, attainment, fertility, enlightenment, extension, consumption and evolution in the natural cycle. The catalytic agent does not stay with the mode it causes to change and move toward growth. The electric charge causes the cloud thunder, breaks the cloud into rain, and that causes the earth to produce vegetation. The processes of catalysation, rain and growth are described in the Brahmanas and quoted by Swami Dayananda in his commentaries on Vedic mantras.)