Steem power gives you more curation power on the platform.
You can get it by powering up in https://steemit.com/@pjcswart/transfers

It's a long-term investment in the platform, and pays back by gaining more influence.
Long-term means: it takes a while to "pay out" your steem power and it happens in phases.

• https://steemit.com/steemit/@donkeypong/still-confused-by-steem-steem-dollars-and-steem-power-the-power-plant-analogy
• https://steemit.com/guide/@cryptos/understanding-steem-power-and-how-to-power-down-your-steem
• https://steemit.com/steem/@dantheman/how-to-maximize-curation-rewards
• https://steemit.com/steemit/@calamus056/steemit-curating-rewards-explained-for-beginners
  For if you're interested in the platform