The book is focused on the idea that every individual has the power to overcome life's difficulties through the right mindset and approach to life. Allen argues that the key to success is to cultivate a positive mental attitude, which involves maintaining a calm, optimistic and grateful outlook, and actively working towards self-improvement.The book is divided into 16 chapters, each discussing a different aspect of life's difficulties and offering practical advice for overcoming them. Topics covered in the book include overcoming worry and anxiety, dealing with criticism and negativity, cultivating inner peace, and developing a positive outlook on life.Overall, "Light on Life's Difficulties" is a timeless self-help classic that offers practical and inspiring advice for anyone facing life's challenges. Its message is still relevant today, and it remains a popular book among those seeking guidance and inspiration for overcoming adversity and achieving success.