One verse

Srimad Bhagavatam 3.28.5

3.28.5

मौनं सदासनजय: स्थैर्यं प्राणजय: शनै: । प्रत्याहारश्चेन्द्रियाणां विषयान्मनसा हृदि ॥ ५ ॥

maunam sad-asana-jayah sthairyam prana-jayah sanaih pratyaharas cendriyanam visayan manasa hrdi

maunam
silence
sat
good
asana
yogic postures
jayah
controlling
sthairyam
steadiness
prana-jayah
controlling the vital air
sanaih
gradually
pratyaharah
withdrawal
ca
and
indriyanam
of the senses
visayat
from the sense objects
manasa
with the mind
hrdi
on the heart.

One must observe silence, acquire steadiness by practicing different yogic postures, control the breathing of the vital air, withdraw the senses from sense objects and thus concentrate the mind on the heart.