Wikipedia
''' Raja Yoga is a book by Swami Vivekananda about " Raja Yoga", his interpretation of Patanjali's Yoga sutras. The book was published in July 1896. It became an instant success and was highly influential in the western understanding of Yoga.
Raja yogas are Shubha ('auspicious') yogas that give success and a grand rise in career or business, and a greater degree of financial prosperity particularly during the dasha of the planets that give rise to Raja yogas. However, these results get adversely modified by the presence of other Ashubha ('inauspicious') Arista yogas. Basically, the Yoga or Raja yoga-causing planets during the course of their respective dashas confer their most auspicious results if they happen to own the lagna-bhava (the Ascendant) or the Suta-bhava (the 5th house) or the Bhagyasthana (the 9th house); the person remains healthy, wealthy, happy and successful enjoying yoga and Raja yoga results in case the lagna, the 3rd, the 6th, the 8th, the 9th and the 12th houses counted from the lagna are also not occupied by any planet, and the kendras (quadrants) are occupied only by benefic planets.
Usage examples of "raja yoga".
That gentle rhythmic breathing, perfectly but unconsciously timed from long practice, was the way of the Raja Yoga, which he had learned when young, and all the time he visualised himself, the others, the whole room as blue—.