Spend some time looking at this famous painting of 'The Light of the World' by Holman Hunt. It is truly an amazing painting. To me it was the highlight of an exhibition called 'Seeing Salvation' at The National Gallery in the spring of the year 2000.
Hunt himself said of the painting (for which he felt he needed to explain the symbolism):
'The closed door was the obstinately shut mind; the weeds the cumber of daily neglect, the accumulated hindrance of sloth;...the bat flitting about only in darkness was a natural symbol of ignorance.' and when asked why the door had no handle outside, he replied:'It is the door of the human heart, and that can only be opened from the inside.'
We can often let the state of hearts become much like the door. Overgrown and inhospitable. Christ does not force his way in to our lives (which is why there is no handle on the outside of the door in the painting). We must let him in. It is our choice. Spend time today clearing the door to your heart and let Christ in.