"Cuando el ser entero de una persona está estirado en el esfuerzo de lograr algo difícil y valioso, es imposible que los problemas ordinarios de la vida parezcan importantes."

Simplified Meaning:

When someone focuses all their energy and effort on achieving something challenging and meaningful, everyday problems start to feel small and unimportant. Imagine a student preparing for final exams. They spend hours studying and working hard to do well because passing the exams is really important to them. During this time, small issues like losing their favorite pen or running out of snacks don't bother them much because their mind is fully occupied with the bigger goal. In a similar way, if a person is dedicated to starting their own business, small annoyances like getting stuck in traffic will not affect them as much since they are more concerned with making their dream a reality. By concentrating on significant goals, people can better handle minor inconveniences and not let them ruin their day. This mindset helps people stay motivated and manage stress better in their daily lives.