We cannot see the whole, only parts. We see what is around us, but we never see beyond that. With mindfulness comes an opening, where everything seems to fall into place and has an interconnection. We lose our exaggerated sense of self-importance, and can unite more with all manifestations. All these are still side issues.
Mindfulness means knowing.
As we know and really experience, we can prove, eventually, the four noble truths to ourselves. Mindfulness has, as one of its factors, the ability to be one pointed. We do not become foggy or distracted, but can keep the mind in its place. We have to realize that mind obstructions are a human calamity and not a personal one. This understanding helps us to patiently endure and gradually change.