Lens and points of view
Every lens reveal some parts of reality and blind to you other — always know the limit of your lenses, to succeed choose an appropriate one for the situation at hand.
Lesson: Don’t exhaust your energy using an inferior lens for the situation at hand
On points of views:
There are multiple points of view, but not all them are equally powerful. So whenever stuck — it means that you’re reached a particular point of views’ limit, so step back or move else where and look at the situation from another point of view which is better suited to the situation at hand.
Lesson: Stop needlessly exhausting your cognition/energy from a weak/inferior point of view.
To sum it up: When stuck, go around it — instead of hopelessly trying to walk through a closed door. Or use the handle