the Priest who lit the candelabra was to keep the fire close to the wick, until the wick itself caught fire and rose by itself. This is a lesson not only regarding the lighting of the great candelabra in the Temple but is also a metaphor for many life situations.
The process and commandment of lighting the menorah served as a constant reminder to the High Priest of the important role that he was to always play in the furtherance of Torah and holiness in Jewish society.