So first of all, let's see what 1st house/Ascendant and 2nd house represent -
1st house/Ascendant is your self, physique, personality, overall health, life path and head in human body etc.
2nd house represents Family, Wealth, Speech, Family Lineage, Values, Mouth, Face, Throat, food you like to eat, Assets etc.
Now, what does it mean to have 2nd house lord sitting in 1st house?
It means the planet which rules/controls/owns the 2nd house of your horoscope is sitting in the 1st house/Ascendant of horoscope.
Now, what is the impact of having 2nd house lord sitting in 1st house?
Its generic interpretation is that person's sense of being himself totally came from his family. His family molds his personality. Biggest impact on person's life is through his family, values the family has given and the morals he received from them.
Now, here the planet controlling the 2nd house is going into 1st house, means it is going 12 houses away from its own house. 12th house is house of loss. So, another interpretation can be that this is position of loss of wealth but it is not really so because 2nd house lord is coming to 1st house of self, means wealth is coming to self. Actually, this is one f the strong Dhana Yogas.
Now, results may be different due to aspect, conjunctions of other planets or the planet being Retrograde or Combust. Moreover, now we also need to check the strength of 1st house lord as 2nd house lord is going in 1st house. So again, Overall Chart Reading is important.
So, let's see how different planets will behave differently as 2nd house Lord in 1st house.
Sun - Suppose it is a Cancer Ascendant chart and Sun rules the 2nd house with Leo sign and sits in the 1st house in the sign of Cancer. It shows family and specially father was important in molding the personality of person. The values of family came to person from the father. They are very proud of their family lineage. They also become emotionally attached with their family.
Moon - So it is Gemini Ascendant Chart and Moon rules the 2nd house and sits in 1st house in Gemini. This time person is highly inspired by mother. Mother is key person in family and they get the values from mother. As Moon is in Gemini, this person is business oriented. May be he is helping a family business. This person can easily multi-task many things together. 100 business ideas run through head at the same time.
Mars - Mars can be 2nd house ruler through its two signs. So, let's take both one after the other.
Pisces Ascendant - So if it is Pisces Ascendant, Mars rules 2nd & 9th house and sits in 1st house in Pisces sign. It gives a very masculine personality. Even girls are very much tomboyish. As Mars represents actions, it shows someone very active in spiritual field. Here person becomes very competitive but at the same time, there are power struggles within family, specially with brothers, for family wealth.
Libra Ascendant - Now if it is Libra Ascendant, Mars rules 2nd & 7th house and sits in 1st house in Libra sign. Here, the chances of struggle in family are more as Mars is in Venus ruled sign, which is quite a neutral sign for Mars. This person's actions are going into Business, Trading and resolving disagreements between people. So, they can become diplomats and contract lawyers.
Mercury - Mercury also can be 2nd house ruler through its two signs. So, let's take both one after the other.
Taurus Ascendant - If it is Taurus Ascendant, Mercury rules 2nd & 5th houses and sits in 1st house in Taurus. Clearly shows a person who is in finance related business. May be the family has similar business and he is taking it forward. It shows someone who loves to hoard family wealth and assets Whenever Mercury and Venus exchange their energies, person gets inclined to do a finance/wealth related business.
Leo Ascendant - If it is Leo Ascendant, then Mercury rules 2nd & 11th house and sits in 1st house in Leo. As Virgo is sign of details and analysis, this shows an accountant and analyst in finance field. This person is very calculative and practical about his wealth in life. As Leo is sign of Government, it shows some working as an accountant for Government or any other authority figure.
Venus - Venus also can be 2nd house ruler through its two signs. So, let's take both one after the other.
Aries Ascendant - If it is an Aries Ascendant, Venus rules 2nd & 7th house and sits in 1st house in Aries sign. It shows for a guy that wife is bringing wealth for the person after marriage. It also shows kind of love marriage and person is kind of center of attraction wherever he goes. It shows person inherits good amount of family wealth.
Virgo Ascendant - If it is Virgo Ascendant, Venus rules 2nd & 9th house and sits in 1st house in Virgo, where it is debilitated. Here in early part of life, person is careless about money and loses it but with maturity they realize to be practical about their resources, assets and wealth etc. Then they become very practical about money matters. In relationships, person takes the attitude of critical to the lover, hence some break-ups are on the cards early on in life. But if Venus is Vargottama in D9, then person can expect a long standing relation based on practicality of life.
Jupiter - Jupiter also can be 2nd house ruler through its two signs. So, let's take both one after the other.
Scorpio Ascendant - If it is Scorpio Ascendant, Jupiter rules 2nd & 5th house and sits in 1st house in Scorpio Sign. It shows that what person gained from family is really high religious values and morale teachings. He keeps the moral teachings as of high value in life. It also shows that his family life goes through some sort of transformation.
Aquarius Ascendant - If it is Aquarius Ascendant, Jupiter rules 2nd & 11th house and sits in 1st house in Aquarius. Clearly shows someone working in large organisations in finance field. Spiritual Values instilled by family molds person's identity. This person will be regarded as highly wise in society and almost a Guru. In some cases, it provides obesity too. They use their higher learning and values for a common higher goal for everyone.
Saturn - Saturn also can be 2nd house ruler through its two signs.
In either sign (Capricorn/Aquarius) as 2nd house lord, Saturn in 1st house (for Sagittarius/Capricorn Ascendants respectively) shows that person received wealth and assets in life only after putting sheer hard work and considerable delays in life. Early on in life, Saturn makes us lazy/negligent about the things related with house where it is sitting. Due to such negligence and laziness, when we don't get desired result, we become doubly cautious and hardworking for same things. So as always, Saturn is about life-lessons and putting the hardwork. As it is in Ascendant, they will never get anything in life unless they put their hardest of labor.
Rahu - If Rahu is 2nd house Lord through its sign Aquarius, as it co-rules Aquarius along with Saturn, and sits in 1st house in Capricorn then 1st of all we need to make sure of Saturn's position as it is the main ruler. Rahu in Capricorn in 1st house actually turns Rahu into Saturn as Rahu takes the character of planet that it is sitting with or of the sign lord. So, Rahu here gives lots of expectations and desires to person from himself but as it is in Saturn's sign, those desires don't get fulfilled in early life. Here again, person would have to put his best effort to gain anything in life. Foreign Lands/Foreign Culture becomes an important part of person's life path.
Ketu - Likewise, If Ketu is 2nd house Lord through its sign Scorpio, as it co-rules Scorpio along with Mars, and sits in 1st house in Libra then 1st of all we need to make sure of Mars' position as it is the main ruler. As Ketu isolates/separates a person from the things related to the house Ketu is sitting, here it actually separates person from himself, which means these people have lack of self-value or self-worth. They feel that other people are more blessed than them. Occult becomes an integral part of their life path. May be they gain wealth through the path of occult practice only. As Libra is sign of relationship, this person doesn't find any relationship with self.
Hope this covers maximum points and is helpful.
Vishal S Saxena - Astrologer.
Facebook Page - https://www.facebook.com/astrovishalsaxena/ .
Twitter Page - https://twitter.com/astrovsaxena .