Your fluid is big time low. Once you start up, it'll drop even lower as the fluid starts moving. I say it will drop lower, because as low as it is, you've likely got air in the system. Best part is, it will self bleed, just give it time. Fill it up, and let it idle for a while, then slowly turn the wheel stop to stop, afterwards check level again and top off.
Next, for the level to get that low, you probably have a leak in the system. Notice any oily puddles on the garage floor lately? Could be a leak in the hoses, front seal of the pump or from the steering box, or it's just never been checked. Until you verify you do or do not have a leak, I would check every other day to gauge usage, and top off as necessary.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.