From personal experience, I know it can be really really hard to get back to the same dream world once you’ve left it. But if a deity is trying to reach out to you, I doubt their contact would be limited just to one dream world.
Meditations are usually my preferred way to get in touch with deities, but there are many ways you might try to contact them. Here are few discussions with tips you might find useful:
→ Introduction to Deity Work
→ How Do You Find and Connect With a Deity?
Good luck, @alisa, and Blessed be! 