Apparently Jeanne d'Arc started receiving messages from God when her Saturn transited Mercury by conjunction.
This excerpt may be of interest:
“A reluctance to commit to anything may appear since you often fear what you don?t understand, especially the future. Whatever commitment you do make now can obligate you for an extended period. If you know all the parameters, then this is an excellent time to enter into an agreement that may require specific duties. Although your shortsightedness may prevent you from looking ahead, you can benefit from beginning any course of study now or learning a new skill that has a practical application for long-term goals.
Careful selection of information that you receive and distribute can ensure no unpleasant surprises. Still, you likely find that important facts can have a significant impact upon you during this cycle. Restricted movements occasionally cause problems because you may not have access to what you did before. You can experience a slowing down of activities that sometimes causes delays and frustration in travel, especially within your immediate environment.
One lesson of this cycle is to concentrate on the most important idea that you have and develop it as fully as possible. Being scattered in thought likely means an inability to find the right answer at the right time whereas focused attention on the immediate situation can allow you to respond appropriately and skillfully to the moment. Sometimes, though, you tend to dwell on a detail to the exclusion of all else and can become disconnected. Strive to recognize the essence of each moment, respond to it, and then let it go."
From the TheFutureminders astrology report by Nick Symington
All transits simply act as background influences until they make a mathematical aspect to another planet or angle ie: Ascendant and Midheaven.
learn about transits
learn how to read an ephemeris, the glyphs are the shorthand for signs/planets
“When Saturn transits square or opposition Mercury, we may have a pessimistic attitude towards our lives, feel misunderstood, and find ourselves in conflict with others on intellectual levels. We are likely to experience communication problems. It can appear that others are not especially sympathetic to our point of view. However, it is important that we examine how we are communicating with others, as it is likely that our words are strongly colored with negativity. It is very hard for us to see the "big picture” during this period. In some cases, we may end friendships over disagreements at this time, or come close to doing so. This is a time when we are called upon to examine our thinking patterns to find rigid or negative attitudes that have been holding us back from advancing. We are ridding ourselves of projects that no longer serve their purpose, and learning to cut out the fluff in our lives so that we can focus on projects that truly matter. It’s not the best time to present your ideas, but rather to reassess them, and work on perfecting them for presentation at a later date. You are seeking truths now, and in the process, you might experience many doubts.“ http://www.cafeastrology.com/saturntransitaspects.html
I see this a quite a good transit for studying, doing some research. You may feel liek communicating less with those around you, but just don’t become a recluse.