Non-league is the root of English football.
The National League is the border separating professional full-timers from semi-professionals who work in the daytime and train in the evenings.
Many of you reading this will have had an experience of Sunday League football or semi-professional football, but if someone came up to you and told you that your side could be playing professional football in five years time, then you would probably call them absurd.
However, there are sides who have made the giant leap into the professional game and not just survived but thrived in their new division.
Many a side have made the jump and failed to produce the goods, and have subsequently dropped down back into non-league.
Here are FIVE sides who have gained promotion to League Two and, in some cases, pushed on and gone even further....
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PRESS THE IMAGE BELOW TO SEE THE FIVE CLUBS!
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Burton Albion
The Brewers are currently second place in League One, and have been the surprise package of the season.
They spent seven seasons in the Conference Premier up until the 2008/9 season, in which they won the league, gaining promotion to League One last season after two seasons of Play-Off heartbreak.
Under Jimmy-Floyd Hasselbaink, they look like they are only on the up.
Fleetwood Town
The Cod Army spent the 2008/9 season in the Conference North. They finished 8th.
After three promotions in six years however, they are now scrapping for their League One survival, currently occupying the last relegation space in League One in 21st.
Their rise up the divisions has been massively helped by current Leicester star Jamie Vardy, who scored 31 goals in 36 games in the season in which they gained promotion to League Two.
Accrington Stanley
Stanley have been one of the biggest shocks in League Two this season, and are currently battling for promotion in fourth place, just one space out the automatic promotion spaces.
Josh Windass has been a revelation for the club, proving pivotal in almost every game this season.
Many expected Stanley to be battling for survival, but they have proved quite the opposite, putting in some stellar performances.
Oxford United
Since gaining promotion through the Conference Premier Play-Offs in 2010, Oxford have established themselves as a steady mid-table League Two side, but many expect them to truly push on this season, and they have duly delivered.
They sit in second place currently, trailing top dogs Plymouth Argyle by five points, and hoping to stay in the automatic promotion places throughout the rest of the season.
Exeter City
Paul Tisdale is the longest serving manager in the Football League and clearly for good reason.
Since gaining promotion to League Two through the Play-Offs in 2008, they have enjoyed considerable success, reaching eighth place in League One at their highest finishing point.
They are now regaining stability in League Two, but the highest achieving fan-owned club in the Football League are clearly on the up.