Iman has been "helped tremendously" by the outpouring of grief following David Bowie's death.
The 62-year-old model has thanked the public for being so supportive after her husband's tragic passing in January 2016 as it has helped her cope with his death.
She wrote: "Some months ago, the stars demanded David's presence. We surrendered a husband, a father, a father-in-law, a friend, a mentor, and all the nameless daily ecstasies that occur between people who love one another.
"The outpouring of grief over David's passing has helped me tremendously, though sometimes I've been at odds with it, too: Universal grieving for your life partner can also keenly deepen your own sense of all that you've lost."
And Iman knows she will "be together" with David again one day.
Writing in a feature for Vogue.com, she shared: "David gave me the most exciting, touching, and deliriously loving 24 years. Still, it was not enough - shockingly brief. And although I'll never get used to losing him, David is nonetheless hiding in plain sight. We have our beautiful daughter, Lexi, now seventeen; a year ago, David's son, (film director) Duncan (Jones), and his wife, Rodene, gave birth to a son, Stenton; my daughter Zulekha and her husband, Jason, will bless us with a baby this summer.
"With this burgeoning family, I've added a new title to my list: Nana. So I'm Mom and Nana now, while striving to live up to my name in spirit and example; to have iman; to always have faith. As for David, I have perfect iman that we'll be together again. Love doesn't cease; love reshapes."