Sarvatobhadra Chakra

The Sarvatobhadra Chakra is a 9x9 grid of 81 cells whose name means auspicious in all directions. It is five squares nested inside one another. The outer square carries 28 nakshatras, seven to each wall; the next carries 20 consonants; the third carries the 12 rashis, three to a wall; the fourth carries four tithi groups; and the single centre cell carries Poorna. Sixteen corner cells hold vowels.

That accounting is exact and it is worth stating, because it explains an absence people ask about. Eighty-one cells, and every one of them is allocated. Nothing is left for the seven weekdays.

A graha standing in a cell pierces the one facing it across the ring, so the question a practitioner asks of the figure is not what is happening but which day is free of it. Slow grahas make that a real search: Saturn sits in a sign for two and a half years and Mars for six weeks, so a single one of them on your rashi can block every day of a month without anything changing.

This is why the tool reports a scan rather than a verdict. It walks the days ahead, marks which are clear on the points you asked about, names the graha behind each blockage, and says outright when a blockage held for the entire window rather than leaving you to infer it from an empty list.

Vedha means piercing. The target is the cell facing the source, which is a reflection perpendicular to the wall the source stands on rather than a rotation through the centre. Those are different maps and they give different answers: the correct one pairs Krittika with Shravana.

Motion moves the target. A graha at ordinary or stationary speed casts across vedha; one running faster than its mean casts one step clockwise, which is fore vedha; a retrograde one casts one step the other way, which is hind vedha. The Sun and Moon are always read as fore, and Rahu and Ketu, being permanently retrograde, always as hind.

Strength follows dignity, at the four classical multipliers: three times when exalted, twice when retrograde, half when debilitated, once otherwise. The accumulation is a four-rung ladder rather than a percentage. One vedha reads as conflict, two as loss of wealth, three as defeat, four as danger to life.

Three of them. Your janma nakshatra, your rashi, and your tithi group, all worked out from your birth date, time and place rather than typed in. Your vara is shown because it is one of your points, but it is never pierced, for the reason above.

If your tithi group is Poorna you will see a note saying so. Poorna is the centre cell, the centre faces nothing, and so it takes no tithi vedha under any transit at all. That is the classical position and not a gap in the reading, but a silent omission and a genuine all-clear look identical to a reader, and only one of them is good news.