Day trading is a challenging and risky financial activity. Day trading demands quick thinking, fast acting, and a sharp sensitivity to market shifts. However, when executed rightly, it can offer lucrative rewards.

Day trading involves buying and selling a financial instrument such as stocks, forex, or commodities within a single trading day. This means positions are usually opened and closed within a single session. This method is typically used by seasoned traders due to its inherent risk.

Day trading's core principle rests on exploiting market volatility. Through capturing the website price movements in a day, traders can capitalize on small gains that collectively result in significant profits.

To succeed in day trading, individuals need a robust strategy. This plan ideally encompasses technical analysis, efficient risk management, and the mental fortitude to handle the stress. Technical analysis, a key component of the strategy, employs graphs and other analytical tools to discern patterns which could foresee future price trends. Risk management, on the other hand, involves setting up safeguards against potential losses.

Psychology plays a significant role in day trading. Emotional reactions and hasty decisions are common traps, leading to considerable financial downfalls. 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. Its risky nature and the required technical expertise can be overwhelming for novice traders. 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. Successful traders attribute their triumphs in day trading to solid knowledge, diligent planning, and formidable discipline. 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 rewarding and satisfying enterprise.

In conclusion, day trading is a risky but potentially lucrative financial activity. It involves not just understanding market trends, but also being psychologically prepared to handle the pressures of swift trading. 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.