Still struggling how to understand what surge means? And peak means?

Randi

Hi guys, we are new to trying to convince and I’m just not understanding what to do. For instance when I test for ovulation and it say hi surge I don’t know if that’s the 24 to 36 hours when I ovulate? So, I would need to have sex the day before the high surge or starting on the high surge and then the next 24 hours to 36? If anyone can honestly just lay it out for me in the easiest terms as possible I would greatly appreciate it!