Saubhagya is the fourth nityayoga, and its name means good fortune, marital happiness, and blessing. It is one of the auspicious yogas, regarded as highly favourable for marriage, celebrations, and any undertaking that seeks prosperity and well-being. Reckoned like the others from the summed longitude of Sun and Moon divided into twenty-seven parts, it advances through the month as the lights separate. In the panchanga the yoga is one of the five daily limbs consulted for muhurta, and a benefic yoga such as Saubhagya is sought out for auspicious ceremonies. These are the conventions of the calendar tradition, which assigns each of the twenty-seven yogas a settled favourable or unfavourable nature, here among the most positive of the set.
Saubhagya is also the ordinary Sanskrit and Hindi word for a married woman's auspicious fortune specifically, and in living Hindu practice across much of India it names the whole cluster of markers, vermillion in the hair parting, the mangalsutra necklace, certain bangles, associated with a woman whose husband is living, a usage still current well beyond astrology. The yoga's traditional association with marriage draws directly on this wider cultural sense of the word rather than on any independent astrological reasoning, which is part of why Saubhagya is singled out among the many favourable yogas as particularly sought for wedding muhurtas specifically, rather than simply for good undertakings in general.