When you are truly inspired (in-spirit) you are unable to trace the source because it is beyond definitions and boundaries. Whereas when your motivation is from the ego, it is most certainly traceable.

The genuine inner prompts will not be wrong or ill-advised because their source is infinite and all knowing. The prompts of the ego are fallible because they rely mostly on historical analysis and deny the intuitive.

This is useful knowledge in determining if the direction you sense is from within or without, and ultimately if this is the proper direction for you at this moment.