If it be true that spirit is involved in Matter…then manifestation in the divine in himself and the realisation of God within and without are the highest and most legitimate aims possible to man on earth.
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).
As a camel beareth labour, and heat, and hunger, and thirst, through deserts of sand, and fainteth not; so the fortitude of a man shall sustain him through all perils.
To uphold righteousness, so supreme an act did he perform; he gave his head, but did not utter a word of sorrow. For the sake of righteousness, he did this great heroic deed; he laid down his life but not the principles… Guru Tegh Bahadur broke his earthly vase on the head of the Emperor of Delhi – and went to the abode of God.

