Your Friend has Recently Recovered from Illness. Write a Letter Asking him to come and Spend some time with you for Rest and Change
My dear Friend
I just received your letter and am very happy to read that you have recovered from illness. I congratulate you on your recovery.
After prolonged illness you must be feeling weak and dull. So it would be very nice if you come to my place for a few days. It would provide you some rest and a great change.
The weather here is very pleasant these days and will be invigorating for you to get back into high spirits. This is really a nice place for regaining your health and vigour.
Hoping to hear from you soon.