I've have always believed that when you no longer take pleasure in things that once gave you pleasure something must be wrong. Isn't that one of the warning signs of depression? But maybe there isn't anything wrong at all, other than believing that what makes you feel fulfilled and productive today will always remain constant.
I fully embrace the concept of seasons. There are seasons for everything. Some seasons last a few weeks, others years or decades. The tricky thing is we never know how long a particular season will last.
Some seasons are marked by very specific life events: weddings, births, graduations, etc. They are shared with others and make vivid impressions on our time lines. Others come into view quietly and fade so slowly you hardly realize they have passed until they are gone and you can no longer remember when or how it started.
You wake up one morning and find your routine has changed without even so much as a conscious thought on your part. What you used to do, you no longer do. It happens just like that.
I feel it, right now, at this very moment. A season has passed. Its not good, or bad. It just is.