An individual retirement account, or IRA, is a partially or entirely tax-deductible investment which yields tax revenue when it matures and is accessed by the investing party. This means that an IRA account shelters funds until the time has come for them to be disbursed to facilitate retirement, hopefully having accrued additional funds through investment.
Roth IRAs function in an opposite fashion. They do not preserve taxation immediately and are fully taxable. However, they do not pay duties or taxes when they are finally accessed. This means that the distinction between the two relies on the investor's preference for short or long-term financial planning.
An IRA should slowly accrue value over time at a rate that exceeds the impact of eventual taxation. Given proper curation, it can provide the seed of a "nest egg" or retirement fund which allows the investor to continue living independently after ceasing to be a part of the workforce.
The Roth IRA is a more aggressive pursuit strategy which values long-term thinking at the expense of current finance. It necessitates leaner living in pursuit of greater eventual profits thanks to untaxed investing revenue and no barrier to acquiring the funds once the IRA becomes mature and access is desired for retirement or simply for redistribution.