A little more than a year after her father's death, Zelda Williams posted a touching Instagram photo with a lengthy caption about sadness, anger and fear to encourage anyone who might be suffering from depression.

"Avoiding fear, sadness or anger is not the same thing as being happy," Robin Williams' daughter wrote. "I live my sadness every day, but I don't resent it anymore. Instead, I do it now so that the wonderful moments of joy I do find are not in order to forget, but to inhabit and enjoy for their own sake. It's not easy."

LOS ANGELES, CA - AUGUST 13: Actress Zelda Williams (L) and her father actor Robin Williams arrive at the premiere of Magnolia Pictures' 'World's Greatest Dad' at The Landmark Theater on August 13, 2009 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

"And for those suffering from depression, I know how dark and endless that tunnel can feel, but if happiness seems impossible to find, please hold on to the possibility of hope, faint though it may be," the 26-year-old continued. "Because I promise you, there're enough nights under the same yellow moon for all of us to share, no matter how or when you find your way there."

Moonrise on the lake I spent this night shivering and laughing under a clear, cold sky full of stars with people I love just to witness something beautiful. We mooned the moon and laughed ourselves hoarse, and I'm so incredibly grateful for every silly second. I came to a realization this year that I feel compelled to share here, for whomsoever may need it: Avoiding fear, sadness or anger is not the same thing as being happy. I live my sadness every day, but I don't resent it anymore. Instead, I do it now so that the wonderful moments of joy I do find are not in order to forget, but to inhabit and enjoy for their own sake. It's not easy. In fact, I'd say it takes much more effort to consciously do than it does to just stay sad, but with all my heart, I cannot tell you how worth it it is. And for those suffering from depression, I know how dark and endless that tunnel can feel, but if happiness seems impossible to find, please hold on to the possibility of hope, faint though it may be. Because I promise you, there're enough nights under the same yellow moon for all of us to share, no matter how or when you find your way there.

A photo posted by Zelda Williams (@zeldawilliams) on Sep 5, 2015 at 12:13pm PDT

Six weeks ago, on what would have been her father's birthday, Williams posted an image of clouds to her Instagram page and said while she was going to take a short hiatus from social media, she requested that anyone who wished to post about her father on her page "be respectful and kind to one another."

Kinda hoping I fly thru that very cloud on the way home ✈️ on another note, I will be taking a break from social media in the coming weeks. It's a time better served away from the opinions or sentiments of others, and I appreciate your understanding. In my absence, I understand there will be those who wish to leave messages regarding Dad on my board, but please attempt to be respectful and kind to one another in the process, both because I will not be here to delete or mediate trolling, and because kindness is in short supply these days anyhowThanks guys. Buh-bye now!

A photo posted by Zelda Williams (@zeldawilliams) on Jul 20, 2015 at 3:55pm PDT

Comedian Robin Williams was found dead in August 2014. Drugs and alcohol were not a factor in his death, which was ruled a suicide, according to the coroner.

The late Williams' last Instagram post was an older photo of him with Zelda to honor her birthday.

#tbt and Happy Birthday to Ms. Zelda Rae Williams! Quarter of a century old today but always my baby girl. Happy Birthday @zeldawilliams Love you!

A photo posted by therobinwilliams (@therobinwilliams) on Jul 31, 2014 at 4:35pm PDT

(H/T: Buzzfeed)