Nana almost over

Felix has now been breatfeeding for over 4 year- his whole life in fact. Today might be our last feed. It is getting more and more difficult for him to attach and get milk. Tonight he tried and said they (my boobs) don't want share with him at the moment. I will miss this part of our relationship but also know that it has been such a special gift. I thought I would have felt relief or sadness but I just have a sence of readiness. Weaning can be a gradual process with coming and goings for weeks, months or years. It is really only the beginning of ...?