For huredriel
Tarot is indeed so much easier and quicker than astrology to learn -- at least to get to the point where you can do a competent reading. Astrology is a very rich symbolic language, the symbols are not so "obvious" as a card image, but they are very well described in the many books written about astrology, mythology and the development of western thought over the past thousand plus years -- plus the input of othr cultures and times. So, there is indeed a lot to learn.
As for me not explaining all of the activity in your chart -- if you wish to study astrology then you have to make a committed effort over a period of time. There is no quick route to knowledge here. Quick answers require a chart reading -- actually a reading of several types of charts. So, I made some comments without taking the time to study your chart, they may or may not be appropriate but hopefully they might lead you to some study.
As you learn about astrology keep in mind that any individual planet/symbol can have multiple meanings. This requires synthesis on your part and the use of those symbols/meanings that relate to what you are look for. Symbols tend to express themselves on several levels. For example, your transiting Neptune at your IC angle might: 1) for your overall life during this period bring you both a sense of idealism as well as some confusion over what your goals are, 2) for day to day efforts you may feel quite inspired about projects that involve creativity, 3) relative to studies and education, you may focus more on religous, mythical, theatrical, dramatic topics if appropriate, 4) for health issues you might note issues of concern in the lower lungs or middle abdomen, or have a poor energy level, 5) for social situations you may find a number of mystical, theatrical or people of uncertain ethics coming into your life, and 6) attitudes and perceptions may be overly influenced by fantasy, over sensitivity, self-deception. These are all typical of how Neptune could emerge into your life -- but all of this is subject also to the influence of other planets that contact Neptune from time to time and then pass on into other areas of your chart.
I don't want to scare you about astrology's complexity, you have to learn to keep it simple. That is what the Planet Series threads are all about, keeping our use of symbology both simple and effective. Dave.