Transits
Transits are the current positions of the planets. As the planets move along their orbits, they change their positions over time relatively to the signs and houses they were placed at the moment of your birth. When the transiting planets come into a conjunction with the sensitive points of the chart or aspect the sensitive points of the chart (like points where the planets were placed at the moment of your birth), they activate the chart. The events in your life start to happen in according with the nature of these positions and aspects. Transits of the planets over the Ascendant or aspects to the Ascendant are most important, as they will effect both - your life and your health.