A penny for a thought...

I was directed by a close friend to get involved with steemit. No instructions given... endeavoring what i habe signed up to I have spent a considerable time trawling... about 5 minutes...

I gather there is a great following towards cryptocurrencies. So I have a question towards a currency I am mining Expanse coins but for the life of me do not know what they are for.

Every help, direction and story is greatly appreciated.