Use 'bog down' when something stops advancing because of an obstacle.

Progress Halted

Imagine 'bog down' as getting trapped in mud, it's a metaphor for delay and struggle.

Metaphorical Mire

'Bog down' often carries a sense of frustration or disappointment.

'Bog down' can implicate outside factors slowing progress, not just internal ones.

Think of 'bog down' when an action or process loses its effectiveness.

Avoid getting 'bogged down' in details when explaining priorities or main ideas.