さ差saしshiか掛kaかるkaruさ差saしかかるshikakaru
1.
To reach a specific point in a journey or process, indicating a moment of transition or change as one nears a destination or stage.
2.
To enter a certain time period or situation, suggesting the onset of an event or condition as one moves into a new phase.
3.
To hang down or cover from above, implying a physical presence that overshadows or interrupts what is beneath it.
Example:
私達が峠にさしかかる頃に雨になった。