Day trading is a challenging and risky financial activity. It requires swift decisions, prompt actions, and a keen eye for market trends. However, in capable hands, it may pave the way to immense profits.

Day trading involves buying and selling a financial instrument such as stocks, forex, or commodities within a single trading day. This implies that trades are typically initiated and concluded in a single trading period. This method is typically used by seasoned traders due to its inherent risk.

Day trading's core principle rests on exploiting market volatility. By leveraging these intra-day price fluctuations, traders aim for small, consistent profits which, when accumulated, could lead to a hefty sum.

Success in day trading hinges on having a concrete, executable plan. This plan ideally encompasses technical analysis, efficient risk management, and the mental fortitude to handle the stress. Technical analysis involves the use of charts and other tools to identify patterns that can predict future price movements. Risk management, on the other hand, involves setting up safeguards against potential losses.

The human mind and emotions significantly influence day trading. Impulse and fear-induced decisions are common pitfalls that can lead to substantial losses. Therefore, maintaining discipline and sticking to the trading plan is crucial for success.

It remains paramount to understand that day trading is not for everyone. The inherent risks, coupled with the need for specialized knowledge, can daunt newcomers. Without proper knowledge and understanding of financial markets, technical analysis, and risk management, diving into day trading might be a dangerous endeavor.

While day trading has the potential to yield superior profits, it also accompanies sizeable risks. Sound knowledge, proper planning, and discipline are the pillars of successful day trading. Thus, treating day trading with the seriousness it deserves is paramount.

Despite the risks, for those who perform their homework diligently and aren't afraid of hard work, day trading can be a financially day trading rewarding and satisfying enterprise.

In conclusion, day trading is a risky but potentially lucrative financial activity. Successful day trading demands a comprehensive understanding of market trends and the mental capacity to withstand the stress of quick-fire trading decisions. In the end, day trading isn't a get-rich-quick scheme, but rather a financial venture that requires patience, discipline, and the tenacity to weather the waves of the fickle financial market.