They constantly chant the Divine Name. This is indeed the characteristic of a true sadhu.

 

Source : Madhuramurali English Edition

 

SAINT SKETCH – S A R A Y U D A S J I M A H A R A J

Sadhus immerse themselves in the nectar of Bhagavat Guna and lilas, the divine sports of Bhagavan. Srimad Bhagavatam describes how a sadhu leads his life: if someone tells katha, they listen joyfully to it; if there is someone to listen to katha, they tell katha and reminisce Bhagavat guna; if they are alone, they constantly chant the Divine Name. This is indeed the characteristic of a true sadhu.

Of the nava vidha bhakti spoken of by Sri Prahlada, 

S A R A Y U D A S J I M A H A R A J's most favorite was Kirtanam through Bhagavat katha. He enjoyed immersing himself in Bhagavat guna through katha.

Chant the Mahamantra Nama kirtan :

Hare Rama Hare Rama Rama Rama Hare Hare

Hare Krishna Hare Krishna Krishna Krishna Hare Hare