"あなたの中にある苦しみの種は強いかもしれませんが、苦しみが無くなるまで幸せになることを許さないでください。"

Simplified Meaning:

Everyone has difficult times and feels pain, but you don't have to wait for all your problems to disappear before you start enjoying life. Imagine you've planted a garden, and weeds are growing everywhere. You could refuse to enjoy your garden until every single weed is gone, or you could start appreciating the flowers that are blooming now, even if some weeds are still there. In life, this means finding moments of joy and peace even when you're dealing with stress or sadness. For example, a student worried about exams can still take a few minutes to enjoy a hobby or spend time with friends. This way, they balance their stress with happiness, rather than waiting for a perfect, stress-free time that might never come. It's about not letting difficulties steal your ability to see and enjoy the good parts of your life. By doing this, you can be happier overall and better handle the struggles when they come.