Vim mksession equivalent on emacs

I started working on vim about a year ago and decided to give emacs a try. I really like it so far, but there is a feature I am missing in emacs: the ability to save the session as it is now (different buffers and local commands, aliases, etc.) and reopen it later.

Vim requires a simple :mksession session.vim

and:source session.vim

How can I find the same behavior in emacs?