An asset's volatility measures its price fluctuation over a certain period of time. It is not an indication of market direction. When volatility is high it means the asset's price is fluctuating more dramatically and when volatility is low it means the price is stable.
You may have the correct view on direction in the longer term but if the move in your direction is volatile, you could be stopped-out before your price target is reached. For example, when trading gold (XAU/USD) there is a distinct difference between a 1% and 5% daily range. If gold is trading at $1100, a 1% daily range means it can go up or down by $11 and 5% means it could go up or down by $55. If volatility indicated a 1% range, you will take this into account when opening a new position allowing for a worst case scenario of $11 against you. If the market indicated 5% volatility you will need to readjust your stop-loss to afford a possible greater move against you.
When buying options you are trading a time limited, high leverage product where your risk is limited to the premium paid and a crucial part of the option's premium is based on expected volatility. When expected volatility is low the option will be cheap and as volatility rises an option's premium rises.
ORE's FX & Gold daily volatility table shows you which pairs over which durations are becoming more (green) or less (red) volatile, thus highlighting which options have become more or less expensive over the last 24 trading hours.