Verse 2

सर्वमेतद्विजानीयान्मन्त्राणामभिकीलकम्। सोऽपि क्षेममवाप्नोति सततं जाप्यतत्परः॥

sarvamētadvijānīyānmāṅtrāṇāmabhikīlakam। sō’pi kṣēmamavāpnōti satataṁ jāpyatatparaḥ॥

Translation

One should know all this as the unlocking key of the mantras. He who is constantly devoted to its recitation indeed attains well-being.

Word by word

sarvam
all
ētat
this
vijānīyāt
one should know
mantrāṇām
of mantras
abhikīlakam
the unlocking key
saḥ
he
api
indeed
kṣēmam
well-being/safety
avāpnōti
attains
satataṁ
constantly
jāpyatatparaḥ
devoted to recitation

Meaning

This second core verse explains that the Kīlaka Stotram serves as the unlocking key for the mantras of the Chandi Saptaśatī. The devotee who is constantly devoted to its recitation attains well-being.