The very strength that protects the heart from injury is the strength that prevents the heart from enlarging to its intended greatness within. The song of the voice is sweet, but the song of the heart is the pure voice of heaven.
Those who are ignorant of the supreme purpose of life will never be able to attain nirvana (liberation) in spite of their observance of the vratas (vows) and niyamas (rules) of religious conduct and practice of shila (celibacy) and tapas (penance).
There are no greater treasures than the highest human qualities such as compassion, courage and hope. Not even tragic accident or disaster can destroy such treasures of the heart.
With the darkness of ignorance, selfishness and greed looming large in his mind, man is unable to radiate the indwelling light of love, compassion and brotherhood.

