What are trines, squares, conjunctions, and oppositions?

They are called aspects and they modify the traits of planets involved. Conjunction always suggests a new beginning because it is at 0 degrees. The Sun/Saturn is not a bad aspect. It gives power and social status but often, Saturn takes it away after giving it. This is a very critical aspect because it gives responsibility and power but with the liability to ume rather more than is at all times wise. Opportunities are numerous. This aspect gives you stability, makes you too cautious, at times fearful. Take note that the critical periods are at 29 yrs old and 58. that is when Saturn will transit its natal place and often disrupts and brings changes, choices, change in career.