It has been always observed that diversity wherever persists balances the nature, same rule applies with the money as well. When an income source is diversified, it becomes feasible for a person to fight with the crucial situations of life and to protect their loved ones from ups and downs of life. Diversification of income becomes important because if one source of income dries up; you still are running everything smoothly with the other sources of income and it keeps your life going without hitting your financial situations massively.
No one should turn down wind farming’s ultimate passive income for the next 30 or more years … even 60 years when there is a positive cash flow on the sum total of all base payments when computing inflation for the next 60 years based on the previous 60 years, as long as the next era’s energy resource is not perfected (at which time they would not renew the option for the second 30 years).
Most of us think of investment income as just the cash flow we get from bank interest, bonds, share dividends and property rents, some of which comes via a super pension.  But a more complete view is to also consider how growing the value of your investments can add to your spending potential.  This total return approach generates income from both income and growth to optimise spending from your portfolio across all market cycles, aligning cheap and expensive investments to your goals.