Age. I turned 40 and realized I probably wasn't on the upswing of life anymore. I've developed a small but weighty sense of "time is running out" that I didn't have before. I want that to be a motivator to do good and meaningful things and not a growing sense of foreboding. That necessitates contemplation of life, faith, priorities, etc.
My wish is to finish my projects allowing my relatives to live ramen-comfortable life without me. Maybe I manage to retire and enjoy the life by myself for a while. I became very materialistic growing up in poverty.