Eating a hearty breakfast, we prepared for our long journey.
I think this sentence alone can mean:
- Eating is part of the preparation
- Eating precedes the preparation (after eating we prepared).
What do you think?
Eating a hearty breakfast, we prepared for our long journey.
I think this sentence alone can mean:
What do you think?
With no other information, most people would infer that the "eating" occurred at the same time as the "preparing". If you wanted to suggest that the eating preceded the preparing (which seems more likely), then it would be normal to use the perfect aspect for the earlier action:
Having eaten a hearty breakfast, we prepared for our long journey.