One verse

Srimad Bhagavatam 12.3.17

12.3.17

युगानि युगधर्मांश्च मानं प्रलयकल्पयो: । कालस्येश्वररूपस्य गतिं विष्णोर्महात्मन: ॥ १७ ॥

yugāni yuga-dharmāṁś ca mānaṁ pralaya-kalpayoḥ kālasyeśvara-rūpasya gatiṁ viṣṇor mahātmanaḥ

yugāni
the ages of the universal history
yuga-dharmān
the special qualities of each age
ca
and
mānam
the measurement
pralaya
of annihilation
kalpayoḥ
and of universal maintenance
kālasya
of time
īśvara-rūpasya
the representation of the Personality of Godhead
gatim
the movement
viṣṇoḥ
of Lord Viṣṇu
mahā-ātmanaḥ
the Supreme Soul

Please explain the different ages of universal history, the special qualities of each age, the duration of cosmic maintenance and destruction, and the movement of time, which is the direct representation of the Supreme Soul, the Personality of Godhead, Lord Viṣṇu.