This controversial that we can make an input to ourselves and our lives.
Hadrat Ali ibn Abi Talib had stated on several points of controversy, namely:
not if it is not accompanied by solemn prayer,
not fast if they are still saying dirty words,
not worth anything to read the Koran if it did not reflect on its meaning,
it's no good science that do not bear the nature of wara (preserved from the prohibition),
no meaning if not accompanied by great wealth generosity,
fraternity means nothing without solidarity,
no means a gift that is not eternal and
no value a prayer without sincerity.
