Of all religions, the highest is the contemplation of the Lord’s Name and purity of conduct.

“Of all religions, the highest is the contemplation of the Lord’s
Name and purity of conduct.
Of all deeds, the most righteous is
To cleanse oneself of evil thoughts by keeping the company
of the good.
Of all works, the most noble is
The constant contemplation of the Lord.
Of all the utterances, the sweetest is that by which one hears
the praise of God and utters it to others.
Of all holy places, the most sacred is
Where one dwells on the Name of the Lord.”

— Guru Arjan Dev, Book of Sukhmani, Adi Granth,
Sikh Scriptures of India, Peace Lagoon translation