Solar arc directions advance every point in your birth chart forward by the same amount — roughly one degree for each year of life (the Sun's yearly arc applied to the entire chart). Because everything moves together, a directed planet crossing an angle or contacting a natal point marks a genuine, dateable turning point: a defining shift in identity, career, relationship, or circumstance. Unlike day-to-day transits, solar arc is a slow, structural technique — it shows the big chapters of a life and roughly when they open. Your reader identifies the significant directed contacts, what each one is likely to bring, and the approximate window in which it unfolds.