The second great awakening was known for its exciting revival meetings.

It wasn't just about religion though. It also had two major groups fighting for rights. Women's suffrage was huge, and black rights was big. Women, and some men fought for almost 100 years before they got the right to vote (they got it i 1912). This was also why the Second Great Awakening was mostly women. A lot of men didn't necessarily support it, but some did. 
Temperance was also something people were fighting for.