That takes lots of work. You can't just randomly close your eyes and wait untill you see spirits. I don't think you will be able to see the gods, just imagine how they look like.
This takes a lot of meditating. And by that I don't mean meditating for 5 minutes then being able to see a spirit. This takes pracitce. It's possible. Now, go to google and reasearch more about it. Reasearch psychic abilities. If you don't feel and do these researches, then that shows me that the energy you have is not enthusiastic in wanting to see spirits. It is possible, you won't be able to do this in a matter of hours.... nor weeks... possibly months. Just do the correct reasearch. If you get a good reply, that won't mean you would be able to see spirits the following day.
Bright Blessings, and may your journey be succesfull.