Do you like walking? Have you noticed how rights of way are often getting blocked by the farmer who owns the land?
When we walk across a farmers land, using our right of way, he usually doesn't even know we are there. Yet he always knows we have been there. We have left footprints in the field creating a pathway that becomes an embedded route across or round the field.
We just get used to following the pathways.
How often do you stop to think about what you are/have been thinking? Thoughts seem to have the habit of taking a ramble through our minds and consciously like the farmer we are often oblivious but subconsciously we are fully aware and receptive to those rambling thoughts. As they become embedded and strengthened they have an impact on the way we consciously think.
Try paying more attention to the rambling thoughts and you may begin to understand your conscious thoughts a little more.