When a hand reaches out to turn on a light switch, it can be said that that hand reaching out is the cause and the light switch turning on is the effect. Yet this is just a convenient distinction, nothing more. It can also be said that when a desire occurs to turn on the light, that is the cause - while the reaching out and the light turning on is the effect.
This is the same for every ‘act’ that occurs within the confines of dualistic thought and perception.
If you step back a few feet from your observation you will see little if any distinctions where they once stood unquestioned. Indeed, an act, a ‘series’ of acts, a slew of ‘events’, and lifetime of ‘moments’ are all one thing… it just depends on your willingness to step outside the dualistic paradigm.