Chava wrote:

Dear Rabbi,

What do we believe about the knowledge people who have passed away have of events in this world? My father passed away almost two years ago. My sister just got engaged, baruch Hashem. Does my father have any knowledge of this? I thank you for your time.

Dear Chava,

Yes, the dead can sometimes have awareness of what goes on in this world. There's actually a custom to try to get engaged and married soon after the passing of a parent in order to bring joy to the deceased parent. So, it's possible that your father knows about your sister's engagement and that it's bringing him joy.

Sources:

• Tractate Berachos 18b