If someone needs to open an entry where a door is not possible, is a mirror the only option?
No, there are many options. Virtual doors and the other ways of opening an entry are taught in the door remedy classes.
Related questions
If doors are already open on wrong padas, how are they treated in interior vastu?
Vedic vastu says the defects of a wrongly placed door can be removed through the decoration of the door itself: auspicious symbols, yantras, paintings and artworks made on the door, door power at the threshold, and a bandhanwar (toran) hung on it. This class therefore treats wrong doors with symbols, torans, bandhanwars and colours rather than structural changes.
My main door is in the South; how should it be treated?
In interior vastu a wrong door is treated only with symbols and similar items, since the full door treatment alone would take about five classes. For South door defects the class gives bandhanwars of stone or gems, a toran of copper and wood, and a red triangular swastik bandhanwar hung on a Saturday or Tuesday. In the South only S4 is a good pada, and it suits those with Kark, Makar or Kanya rashi, mulank 9, or an exalted or own-sign Mars.
A client's family sleeps all the time, late at night, until noon and again in the day; what is the reason and the remedy?
It is a lazy, dormant land where the energy is disturbed and the fire element has fallen to zero, since sleep comes with coolness. Perform a havan with samagri, light a cow ghee akhand jyot in the South-East for eight days, and burn dhoop daily with Bhimseni kapoor on the lamp's upper plate; within eight days everyone starts waking up.
A rectangular plot is built up on three sides and open only on the West, so its energy is low. How can it be extended?
Do not extend it. Instead, place energy-giving items and capture the energy from all four sides to raise the energy level; this is covered in the energy chapter.
A relative's flat had its door at E1. After buying the adjoining flat and removing the common wall the entrance came onto N4, and soon their ancestral land was acquired for a bullet-train project and they received crores. Is this the N4 effect?
Yes, this is chhappar phaad wealth, which comes as soon as N4 opens. E3, N4 and W4 are the three vipul sampada dwar (abundant-wealth doors). Opening them virtually gives perhaps 1 percent of the actual result, so do not believe the heavy promotion of virtual doors; it is the actual opening that brings the result.
A shop shutter often spans four padas, such as S3, S4, S5 and S6. Which pada decides the results?
Do not worry that S3 and S6 are also open: if the good pada, S4, is open within the shutter, the shop gives the results of S4, because when energy enters from every part, positive and negative, the result follows the positive. Trouble comes only when the good part is closed and the bad parts are open; then keep the shutter closed and open a small door on the good pada instead. In combination doors for business, always keep the favourable pada fully open.