Good post. The one who is most easily fooled by us, is ourselves. We want to believe, choose to believe, and so we do believe what we want to see, in many cases.

There is also apophenia which is related.

We can see patterns of shadows and light that form shapes that are not really there, and give meaning to it. This description can apply pareidolia as you demonstrate, but also apophenia:

Source: Being Amused by Apophenia | Psychology Today

We see some type of pattern form, and give meaning to it, either as a shape visually as is the case for this post, or in general in corresponding information to see a pattern. I have found both pareidolia and apophenia to apply in many situations simultaneously.

Take care. Peace.