Fortune defined through astrology...

 कर्माखिला प्तिभुजि मोघ इहान्यथा नो वारि प्रसिक्तपदवृक्षवदाहुरेके ॥35॥

Fortune is like a seed that matures through the waters of efforts, handwork, and the environment if your fortune is good or the seed is of good quality then efforts are rewarded if the seed or fortune is not good, then the effort is only partially rewarded. If the effort is done after the time has passed then the effort is wasted. So intelligent men know the value of time and must act so as to reap the benefit of their effort.

Diseases ascendant lord and moon

 Medical astrology

पापो विलग्नाधिपतिर्विलग्ने चन्द्रेण युक्तो यदि बालकः स्यात् । तदातिरोगं स हि केन्द्रसंस्थस्त्रिकोणलाभेषु गदं निहन्ति ॥ ॥ २४ ॥
There will not be bodily health if the malefic ascendant lord is conjunct Moon and is placed in the ascendant. If the same combination of the malefic ascendant lord and the moon is in trine, Kendra, or 11th bhava the native will be without diseases and healthy.
यदि लग्नेश पापग्रह चन्द्रमा से युक्त होकर लग्न में हो तो बालक अत्यंत रोगी होता है। यदि वह केन्द्र - त्रिकोण और लाभभाव में हो तो रोग का नाश करता है ।। २४ ।।

Mercury (how to evaluate results) it will give.

 Mercury in12th house, read a post on mercury in the 12th wherein a rosy picture was painted and claimed that the elder sibling will help the native because it is 2nd from the 11th.

Now the question is how can mercury represent self or native?

Only when it is ascendant lord.

Has the neutrality of Mercury been considered?

Mercury is conditional benefic or malefic as it gives results of its association.

Question three by being in 2nd from 11th house, How the elder sibling will help?

Here only the bhava are being considered to evaluate the result which seems too far-fetched.

Astrology of this kind is misleading and negates all fundamentals and principles of astrology.

Mercury signifies intellect, speech, trade, commerce, communications, neurons, and maternal uncle.

Rule-When a planet is placed in 6th,8th, or 12th its significations suffer so the houses Mercury represents, the significations it represents will all suffer.

Suppose the 12th lord is Mars and it is also the lord of 5th.

Let us say that this Mars is in Leo and it aspects Mercury, now this means Mercury is related to the 5th and 12th lord Mars since the ascendant is Sagitarrius mercury represents the 7th and 10th houses, in Such a condition the house significations of the 7th and 10th will suffer but the Mercury being associated with a functionally benefic Mars will give mixed results good in phases and bad at times.

Difference between aspect and relation in Vedic astrology

 Relationships of planets.

Parashar

1) Same house planets (Yuti)

2)Exchange ( Parivartan)

3) Mutual aspect.

4) Dispositor aspects own sign with a planet in it, becomes related to that planet.

Mantershwar

1) Same house planets (Yuti)

2)Exchange ( Parivartan)

3) Mutual aspect.

4) When in Kendra to each other (Kendra Sambandh)

5) When in Trikona to each other ( Trikona Sambandh)

Aspectual relation ( controlling aspect)

A planet aspect the other but does not receive an aspect, For example, Mars aspects Jupiter but does not receive the aspect from Jupiter.

The Difference between aspect and relationship

An aspect leaves an influence but in a relationship, planets exert influence on each other.

Let us assume Moon is being aspected by Saturn, Saturn leaves an influence on the moon but does not take any from it.

In situation two this Saturn is related to Mars, so when Saturn aspects the moon in this scenario it will also carry the influence of Mars it has soaked by being related to it when it aspects Moon in this situation.

Yuti results or conjunctions how would they reflect in horoscope

 The horoscope analysis is based on several principles and fundamentals, in a horoscope, there may be several dictums applying to a set of planetary combinations, you just cannot explain a horoscope in the light of a single dictum, planet, or set of planets. The probabilities and possibilities change with exposure and influence. To date, most astrologers have not been able to evaluate Rahu And Ketu as to how they will behave during their periods. People are confused about how to analyze Yuti's ( Conjunctions -not as per Western concept, but when planets are together). Let me try to explain what Yuti is like and then later give you the principle of analysis. Assume you have a glass of milk, and add sugar as the sugar dissolves in it you won't be able to see it in a real sense but you will still be able to taste the sweetness( This perhaps is like the Aspect influence, add a stronger visible influence like Roohafza syrup the taste and color both change but the milk is still drinkable and good to taste, this is because the Yuti forming ( here the two planets soak each other's energies and is called relation or Sambandh) planets have a common feature that they bring to fore. The principle is that when two or three planets combine they will bring out the feature that is common between them to the forefront, take the example of Yuti of 2,5,9,11 or two or three of them the common factor is the acquisition of wealth as they are wealth-producing houses. Take the Yuti of 6th,8th, and 12th the common factor here is adversity so in the Dasha Antardasha of one of these, you can expect adversity. But when the Yuti forming planets are not on the same tangent for example Jupiter, Saturn, or Rahu, the result will depend on the placement and dignity of the planets concerned, Rahu and Saturn have common features but Jupiter is the odd one out here, Now if this Yuti is in Sagitarrius and the strength of Jupiter prevails over in Vargas as well, the suffering of Jupiter related bhavas is reduced a bit, however, Jupiter is soaking in the influence of two separatists planets here, therefore it will carry the malefic influence of associated planets, the Rahu, Saturn will also carry the essence of Jupiter on their sphere of influence. Lower or higher degrees do not matter here what matters is Grah Bal. Take the milk example again if we add salt in it will be saltish, if we heat it a bit and then add a spoonful of curd it will end up as a curd but still, a milk-related product, Adding lemon juice to the same milk over heat will end up producing paneer or cottage cheese but the product again is milk-related, assume heat as the malefic separatist influence. hope I have not confused or addled up your brains

Note - The common feature being prominent in the periods of associated planets is a principle and fundamental to watch for.

Placement and ownership are other factors.

Do not care about degrees the Vargas take care of that.

True astrology is only the astrology that comes from Vedic classics

 Seemingly absurd theories are passed on as astrology and nakshatra-based evaluation for the entire chart is one such practice, the inferences drawn are vague and generic but in a clever clandestine way so that the native finds some semblance through it. The problem with a subject that astrology is that you can explain anything through any method or Padhati once the results are pre-defined, no wonder that you find people arguing or debating that it works for them.

A stopwatch is accurate two times a day, and the result it will provide is a predetermined time at which it stopped, stopwatch is usually used to measure seconds and minutes.
But can it replace the normal watch, the answer is absolute no .
In the same way, these methodologies are just like stopwatches you still need the backing and expertise of Vedic astrology to understand the possibilities and probabilities of nativity, based on a set of rules, fundamentals, and dictums.
On this Guru Poornima, I ask all of you to learn and adhere to the teachings of the classics of Vedic astrology.
Stay away from the swindlers and pied pipers of deceit who lure you into false methodologies and practices.