The Secular Humanists of the Lowcountry will host an event called Reasonfest on Thursday to mark the National Day of Reason and raise funds for a local homeless shelter.

The event will be held at 7 p.m. in Gage Hall, 4 Archdale St. in downtown Charleston.

Reasonfest will feature stand-up comedian and pianist Jennifer Bianchi, aka the Humorous Humanist. An open-mic session hosted by local poet and songwriter Jim Lundy will follow. Audience members will be invited to share their personal “pathways to reason,” or how they left religion to become atheists or agnostics, and to read passages from their favorite free-thought writers.

A $10 suggested donation at the door will raise funds for Summerville’s Palmetto House, a homeless shelter for women and families. Baked goods will be available for purchase.

The National Day of Reason was established in 2003 by the American Humanist Association and Washington Area Secular Humanists. It serves as a critique of the federally sponsored National Day of Prayer, which occurs on the same day and which many secularists regard as an unconstitutional violation of the separation between church and state.

“Our Reasonfest fundraiser will be a way to help our neighbors in need while having fun at the same time,” Secular Humanists of the Lowcountry President Amy Monsky said in a statement.

SHL also assists Palmetto House with meals and construction activities as part of the Summerville Cares Day of Service on Saturday.

SHL raises funds for four secular charities a year and has raised more than $20,000 since 2007.