Hi Grannie Annie
I have had wonderful experiences like that too. Everything is just the way it should be...sometimes just remembering it brings it again. (HINT)
I have also noticed that wanting it again has pushed it farther away. I doubt if these things can be willed, they happen when I am empty, surrendered completely to the moment,and in harmony with nature...which is a very different state than wanting. 
If you do Sedona Method, you could try letting go of wanting to control it, or even letting go of wanting. Perhaps your spiritual practice has a method of surrender, emptying, or letting go.
I hope you will be blessed many times!
vita-man