In a subsequent post, Collins shares the actual letter alongside the caption: “Thank you from the bottom of my heart Michelle Obama for your encouragement and support. You have no idea how much this means to me.”

Obama’s letter thanks Collins for the copy of her book, calling it “such a nice gesture”. She says she looks forward to sharing it with her daughters; Malia, 18 and 15-year-old Sasha.

“The outpouring of support I have received from women across the country continues to amaze me and I am filled with a great sense of hope for our shared future,' Michelle writes.

“I heard this quote recently and it reminded me of your book so I wanted to share it with you. ‘Here's to strong women, may we know them, may we be them, may we raise them.’”

As letters go, it’s pretty awe-inspiring; and Obama’s trademark grace and spirit seems present in every inflection.

As Collins points out, the missive even came with a very cool Wonder Woman stamp: “… that Wonder Woman stamp is everything. You truly are such an incredible inspiration. I'll definitely be framing these!”

“Here’s to strong women”: Michelle Obama’s poignant letter of solidarity to actress Lily Collins