One verse

Srimad Bhagavatam 4.29.69

4.29.69

सत्त्वैकनिष्ठे मनसि भगवत्पार्श्ववर्तिनि । तमश्चन्द्रमसीवेदमुपरज्यावभासते ॥ ६९ ॥

sattvaika-nisthe manasi bhagavat-parsva-vartini tamas candramasivedam uparajyavabhasate

sattva-eka-nisthe
in full Krsna consciousness
manasi
in a mind
bhagavat
with the Supreme Personality of Godhead
parsva-vartini
being constantly associated
tamah
the dark plane
candramasi
in the moon
iva
like
idam
this cosmic manifestation
uparajya
being connected
avabhasate
becomes manifest.

Krsna consciousness means constantly associating with the Supreme Personality of Godhead in such a mental state that the devotee can observe the cosmic manifestation exactly as the Supreme Personality of Godhead does. Such observation is not always possible, but it becomes manifest exactly like the dark plane known as Rahu, which is observed in the presence of the full moon.