How to prolong post meditation emotions, feelings and thoughts?

Whenever I get a good meditation, meaning pleasant feelings arise, they subside after some time. I know that's not the goal of meditation and I should let go of anything, not cling to anything. But still, I would like to prolong the post-meditation pleasant sensations and not go back to other emotions. How can that be achieved? After a good sitting of calming down the mind, desires come rushing in, how to deal with that?