न रमन्ते हि रम्येषु स्वात्मन्येव गताशयाः । ।नोद्विजन्तेऽन्यदुःखेषु स्वात्मन्येकरसायनाः
In plain words
They take no delight in delightful things, their disposition gone into their own Self; they are not shaken by other things, the painful ones — finding their one elixir in their own Self.