At nearly 90 I am not, to say the least, as mobile as I used to be. I certainly cannot follow my serve into net! However, the mind is clear and the imagination, thank goodness, knows no physical limits and can be exercised at will.
In my case, one way of enjoying this great privilege is writing poetry. And as physical activity slows, the imagination ranges far and wide. I find I am writing more poems than I ever have.
Here are three examples:-