what is bitcoin mining ?

Profit is the biggest motivation to get into mining. Simply put, if your cost to mine 1 BTC is lower than the current BTC price, then mining allows you to accumulate BTC at a discount. In other words, if the current Bitcoin price is $20,000 and you can mine 1 Bitcoin for a total cost of $15,000, then you have a 25% profit margin. This is effectively similar to purchasing Bitcoin at 25% below the market price.