Natal Saturn house is the sign where your Saturn was placed during birth time, and from there other houses are calculated clock-wise.
If you were born with Saturn in Sagittarius, then your natal Saturn house is Sagittarius (Dhanus Rasi) and during transit, Sun forming conjunction (in Sagittarius), sextile (aspect of 60° which are Aquarius and Libra in this case), square (aspect of 90° which are Pisces and Virgo here), trine (aspect of 120° which are Aries and Leo here), opposition (aspect of 180° which is Gemini here) are discussed in this article.
Conjunction is transiting through same sign as in birth chart, sextile is transiting 3rd or 11th house, trine is transiting 5th or 9th house, opposition is transiting 7th house from natal sign.
Transit SUN conjunct Natal Saturn : This month will be difficult with critical and unfavorable time.
Suspicion, apprehension, additional responsibilities can bother you. Self discipline can lead to career advancement.
This will also test your strength of will, patience and endurance. There can be some trouble with those in authority.
Vitality and energy levels can be reduced. Egoistic attitude can spoil few situations.
Poor blood circulation, cold, cough can effect you to some extent.
You need plenty of oxygen, so stay away from pollution.
Do not live in isolation and engage in social activities. Elder family member needs attention regarding health.
Bad time for speculation and also avoid start of new projects. If Sun here is afflicted by Rahu or Ketu, postpone all plans to next month.
Transit SUN Sextile Natal Saturn : Your disciplined approach, firm mind, maturity, constructive ambition, prudence leads to favorable results.
This month is good to expand political, business and professional circles.
Good time for people engaged in research, mathematics, accounting, group activities.
Also best time for romantic relationships at work.
Transit SUN Square Natal Saturn : This month is filled with sorrows, disappointments and frustrations.
You will be exhausted with burdens related to profession and family. This can lead to a tendency to escape from social activities.
Pessimism can increase. Romantic breakup can lead to loneliness, depression and negative attitude.
Only hard work, discipline and organized planning can lead to moderate success.
Transit SUN Trine Natal Saturn : You will exhibit self control, caution and conservation because of your past romantic affairs.
You need guidance of elders and experience people.
Long term goals are set and steady progess is made.
Architects, Civil Engineers have good time and any work related to government is favored.
Mining, Real Estate are also favored. This transit tones down current bad transits of Mars and Saturn.
Transit SUN Opposition Natal Saturn : Ups and Downs, obstacles, increased responsibilities, egoistic attitudes are highlighted.
Not favorable for new endeavours, changes, speculations.
Responsibilities can decrease your vitality.
Calcium and metabolism can decrease in body. Problems related to heart, back, bones, skin and teeth.
Health of and elder family member is cause of concern.
You may feel uncared and unloved. When Moon conjuncts Sun for 2-3 days during this transit, things get much tougher.