Since everything is always brought back to the source–to the one origin of all that is seen, heard, sensed, and thought–this unified source is able to concentrate one's entire being.
God becomes that which is mine.
He is what I am attached to in the most intimate sense, even though He dwells in heaven.
I have not much choice but to be related, and to dwell on Him.
This thinking of God, this meditation on the Divine as source of one's experience, leads to love.
Finally, we can view meditation on Divine Unity as a way of enhancing the emotional capacity (for love) and developing a sense of ever increasing wonder and awe.
It is represented by the supply vessel in the menorah that transmits oil to the seven branches.
As the source or fountain of knowledge (of God), it also creates the desire to worship God, to assume the burden of the Kingdom of Heaven.
In other words, for the flame of the seven candles or lamps of the menorah to keep burning, in order for the worship of God to continue unabated, it has to be kept supplied with the oil of a fundamental awareness of God, by a constant dwelling on His Presence, on His Greatness and Glory.
–Rabbi Adin Steinsaltz
From "Implications of the Menorah" in The Candle of God by Rabbi Adin Steinsaltz