Shiva Purana
आधारशक्तिमारभ्य शुद्धविद्यासनावधि ॥ विभाव्य सर्वं मनसा स्थापयेत्परमेश्वरम् ॥ ३६ ॥
From the base power to the pure knowledge seat. Contemplating everything one should place the Supreme Lord in the mind.
english translation
AdhArazaktimArabhya zuddhavidyAsanAvadhi ॥ vibhAvya sarvaM manasA sthApayetparamezvaram ॥ 36 ॥
hk transliteration by Sanscript