SIP is where your Money will be Invested Systematically in the Markets. It makes your investment disciplined.
This is where you can take benefit of market volatility and average your purchase price, hence Rupee Cost Averaging.
Investing for Long Term gives you Compounding Benefits and Rolling Returns for years and years.
Irrespective of Market Conditions, You Invest in Markets periodically. Volatility is best tool for SIP Investments.