You’ve probably practiced reverie sometime in your life, but never taken it to the extreme as in the new NBC summer series aptly called “Reverie,” starring Sarah Shahi and airing at 10 p.m. Wednesdays.

For most, reverie is the simple act of daydreaming, getting lost in your thoughts. The series notches that up by allowing individuals to enter into an advanced immersive virtual-reality program in which they can live out their wildest dreams or fondest memory. When those dreams become so addictive the subject refuses to leave the dream state, it is up to Mara Kint (Shahi), a former hostage negotiator and expert on human behavior, to join the dream state in an attempt to coax the person back to reality before the results are disastrous.

Shahi knows exactly what memory she would live if Reverie were real. The series came to her a few months after her father had died. Shahi didn’t have much of a relationship with him when she was younger, as he was a drug addict and abusive. She and her mother were in and out of women’s shelters while she was growing up.

“When he died, it really threw me back,” Shahi says. “It took me by surprise at the amount of grief I felt. Then I started talking to him, seeing him and feeling him around me. I became convinced that there was so much more to this world than our eyes can see.

“If there was a moment I could pick, I have a very vivid memory of being 2 or 3 years old and being at the lake with my mom and dad. I was in between his legs like a cat. I remember the song that was on, the way the wind was blowing through my hair. I remember the smell in the air. I remember feeling so secure, and there was nothing better to me. If I could go back and revisit that time for a moment, I would.”

Sashi knew from the age of 6, watching TV programs with her mom at a shelter, that she would one day be an actor. The escape she would get through the TV shows was something she wanted to give others when she got older. The moment Shahi got the script for “Reverie,” she knew this was a big way for her to accomplish the task she set for herself all those years ago.

Even working on “Reverie” has created a special memory for Shahi. She recalls visiting Universal Studios Hollywood when she was a child and thinking that one day she needed to work on a series or film at the studio. But, she never had a chance to work on any productions there until “Reverie” came along.

“I had this moment where my eyes weld up with tears and my heart exploded because working on the show was everything I had ever wanted,” Shahi says. “It was my dream come true.”

Since making the leap into acting at the urging of Robert Altman, when the director was filming in Texas while she was attending Southern Methodist University and was a member of the NFL’s Dallas Cowboy Cheerleaders, Shahi has worked in a variety of different roles. The Texas native recently was a series regular on “Person of Interest,” plus she’s appeared in the TV series “The L Word,” “Fairly Legal,” “Pitch,” “Chicago Fire,” “Life,” “Reba,” “The Sopranos,” “Ray Donovan,” “Alias” and “Teachers.” Her feature film roles include “Bullet to the Head,” “Divine Access,” “The Trouble with Bliss,” “Shades of Ray,” “Crossing Over,” “I Don’t Know How She Does It,” “Old School” and “Hangman.”

None of those parts pushed her imagination to the extremes of working on “Reverie.” Each week, her character enters a new world that can be stunningly beautiful or painfully frightening.

“I have been describing this show as ‘Alice in Wonderland’ meets ‘Deception.’ A lot of the show feels like Alice falling down the rabbit hole because she never knows where she’s going to end up,” Shahi says. “Every episode of this show is its own ride.

“You just never know where it is going to take you.”