The ultimate purpose of a significant transit (current planetary influence) affecting ones natal chart is to create inner change and expansion. Frequently this comes as a result of needing to make adjustments to big outer events in our lives. But other times we shift inside, without a big external event, as a result of subtle (yet often Herculean) inner work - and maybe a touch of grace.
Credit to Benjamin Bernstein and Diane Applebaum for both reminding me of this general idea, independently, on the same day. Love synchronicities!