Many professional traders rely on day trading, a challenging yet profitable tactic, for their sustenance. The prerequisite for day trading is a substantial investment, sometimes amounting to millions. A hefty inclination towards day trading resonates amongst several people, notwithstanding the formidable financial prerequisites.

Day trading involves purchasing shares, futures or foreign exchange and selling them before the closing bell. The profit or loss from day trading greatly depends on the short-term market fluctuations, given the brief holding duration.

Day traders require robust analytical skills, risk-management ability and, above all, emotional stability to deal with the financial ups and downs. Moreover, to conduct successful trades, in-depth knowledge about market trends and financial indicators is crucial.

The cornerstone of any successful day trading venture lies in a well-constructed strategy. This strategy involves determining correct entry and exit points, setting appropriate stop-losses, and estimating potential profit margins.

Whilst fast returns from day trading might certainly be attractive, a calculated vigilance towards the risks involved is crucial. Significant losses, competent enough to exhaust a trader's account, could be made within a jiffy. Hence, professionals highly recommended that beginners start with a virtual trading account, also known as a demo account, to learn the ins and outs of day trading without risking real money.

Successful day trading hinges on education, trade the day practice, proper money management, and the ability to keep emotions in check. While the prospects of quick profits are appealing, the possible losses can also be devastating. Yet, with the proper guidance, dedication, and knowledge, 'trade the day' could potentially morph into a profitable undertaking.