Some Tips for obtaining More Meta?

how can I get more meta besides building a team and clicking the meta symbol? What can I do with my meta? Can I spend meta? What’s it’s used? There isn’t that many available resources that share what meta is, how it’s used, what’s it’s benefits are, how I transfer or utilize it.. I’d like more info on what the benefits are in obtaining and holding meta.. if anyone has any insider tips on using this platform or his to obtain more meta etc etc please advise. Thank you!