Sometimes we have things which seem to make it into our thoughts every day. For me it was moving to Southern California to live by the beach. For you it might be a relationship, or a job, or a certain vacation. Things come into your mind for a reason. Something which comes there every day has a very good reason to do so. If you think about something every day, then spend significant time deciding why you think about it every day. It likely is something you want to pursue, but it definitely is not something you want to ignore.
It is in your thoughts for a reason. Your thoughts are very powerful things, do something about it.