"They try to bury us but they forget we are seeds and we will grow."
She said people needed to grieve over the results of the US election, in which Donald Trump was elected president over Hillary Clinton on Wednesday.
"From grief comes these amazing powers. Don't let anyone take your grief from you . . . your grief will fuel you.
"Mr orange oompaloompa is just one in a long line of orange ignorance and hate that we have seen in this world, and there will be many who come along, but I have also seen great movements rise out of this.
"We are not going to be silenced and we are not going to accept this. With your fire and our fire we will blaze darkness away."
Green MP Jan Logie also addressed rally-goers, saying she wanted to acknowledge Americans in the group who had family and friends in the US.
"I understand how Trump happened, and I don't want that to happen to us," she said.
A young boy in a tutu approached the microphone but after a while decided he didn't want to talk to the crowd.
Another member of the group who stood up to speak said everyone needed to "take a good, hard look" at themselves.
"My advice would be, for God's sake, get off the internet," Jack Alison said.
"Get off social media, stop talking to each other on Facebook, because who are you talking to? Who am I talking to now? I'm talking to the converted."
He encouraged people to approach and speak to other people with differing views.
"If you know someone at your workplace is a racist, talk to them," he said.
"The only way we can stop this happening in our country is if we bridge the divide . . . if we honestly want to stop the rise of fascism - and it is fascism, let's be honest - globally, we need to bridge the divide between the parties.
"There's no point arguing, we need to convince. There's no point criticising, we need to debate. There's no point hating, we need to love."