गंगादितीर्थेषु

गंगादितीर्थेषु वसन्ति मत्स्याः
    देवालये पक्षिगणाश्च नित्यम् ।
ते ज्ञानहीना न फलं लभन्ते
    तीर्थानि देवायतनानि भावः ॥

Fishes and other beings live in river Ganga. Many birds make nests and live in temples. That does not mean that they are all enlightened. They continue to be ignorant. Holiness (river or temples) must in essence (mind) and not be attached to material things (water and buildings).