What it means
Budhaditya Yoga is Mercury in the same house as the Sun. Because Mercury never travels far from the Sun, the conjunction is frequent - it is among the most common yogas in any sample of charts. The stated result is intelligence, articulacy and recognition for skill.
How it is read
The problem is combustion. Mercury is combust - asta - when it is too close to the Sun, classically within about 14 degrees, and a combust planet is treated as weakened however good the yoga it forms. So the very closeness that creates Budhaditya is what can hollow it out, and a page that reports the yoga from the house alone has not checked the thing that decides it.
What to watch for
The useful version has Mercury in the Sun's house but far enough out to be clear of combustion, and better still retrograde or in its own sign, which classical texts treat as resisting combustion. Then the reading is real: a mind that thinks in public and is credited for it. Where Mercury is within a few degrees of the Sun, expect the opposite complaint - fluency that is not recognised, or recognition that does not match the skill.
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