Astrologically, the daily transit refers to the longitudinal position of each planet in its daily passage. As each planet reaches a one-degree mathematical relationship to a planet in the natal chart, a situation, event or attitude occurs.
The influence of the aspect is not always subjective; it may be objectively demonstrated in the environment, or in a relationship with another person. For example, with a Mars transit, you may not be energetic, tempestuous, zestful, passionate, constructive, or destructive. But you may see an accident in the street; watch TV violence; contact a lusty, robust friend; find competition and stress in your work environment; or observe someone who is excited or acting in haste.
In all astrological aspects there is a hierarchy of precedence that tends to be preemptive. The prime determinant is the innate character. The law of precedence states: The aspect that fits best into the character will take precedence over the aspect that is foreign to the character.
This thoroughly researched and well written volume will answer all your questions about what to expect when transits occur.