Lena Dunham is on a mission.

The Girls creator and star posted a throwback photo of herself as a 22-year-old on her Instagram on Tuesday along with a long discourse about why she chooses to use her fame 'to spread messages with meaning.'

It came as she also publicly supported a campaign to remove guns from subway posters for the upcoming Jason Bourne movie by literally ripping the image off the wall.

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Reflection: Lena Dunham shared this throwback photo Tuesday that showed her as a 22-year-old. She used it to tell her social media followers that the only use for fame is the ability to 'spread messages of meaning'

Dunham, 30, supported an initiative proposed by MADtv and Girls producer Tami Sagher, who is also a writer for Inside Amy Schumer.

'Hey New Yorkers, what if we do some peeling & get rid of the guns in the Jason Bourne subway ads. So tired of guns,' Sagher wrote on her Instagram alongside a photo of a vandalised poster.

Dunham regrammed the posting, writing: 'Good idea @tulipbone! Let's go!'

'So tired of guns': Dunham, 30, also reposted an exhortation by Girls producer Tami Sagher to literally rip off the image of a gun in subway ads for the upcoming Jason Bourne movie

On the same page: The Girls creator and star, left, supported Sagher, right, who said she's 'so tired of guns' and Dunham also said it's time for America to have a serious debate about race in the wake of the shootings this past week of black men and Dallas cops

Dunham’s response was followed by the photo of her younger self which she said had been sent to her by 'a boy (now man) I loved (still do, tons, just in a different way).'

She explained that what she remembered about being 22 'was how totally unaware I was of the world around me.'

The actress, writer and producer went on: 'For me, it honestly took becoming a public person and being held accountable by viewers and readers to really understand and begin to engage in an intersectional (and therefore whole) approach to life and work.'

'Now I feel that the ONLY use for fame is to spread messages with meaning, and right now the most urgent thing I can think to say is that our country needs to talk about, and change our entire ingrained approach to, race.'

To back up her viewpoint, she followed up by posting to her Instagram an image showing the names of black people shot by white police officers including the two most recent high profile cases of Alton Sterling in Louisiana and Philando Castile in Minnesota.

'No caption needed #blacklivesmatter,' she wrote.