Knowledge of this world, acquired from sources within it, will always be imperfect and limited

vidyam chavidyam cha yas
tad vedobhayam saha
avidyaya mrityum tirtva
vidyayamritam ashnute

“Only one who can learn the process of nescience and that of transcendental knowledge side by side can transcend the influence of repeated birth and death and enjoy the full blessings of immortality.”