My wife and I often refer to our last bite sensation when enjoying a really good meal. We like to end those meals on a high, so we sequence our remainding morsels to ensure we end on a better bite. We savor the taste with the knowledge of knowing it's the last one.

There are only two Northern White Rhinoceros remaining in the world and they are both female. Someday, the last one of them will take her last breath.

The stoics have a practice of acting as if they are doing something for the last time.

"Let each thing you would do, say or intend be like that of a dying person." — Marcus Aurelius

This reminder that everything we do, will indeed have a last time I do them. In fact, many things I've done over my life, I've already done for the last time. Reminding myself of this notion causes me to slow down, be in the moment, and savor the experience, much like a last bite sensation.