Hi oldwoman70 I do agree that moving personal items will allow prospective buyers to see themselves living in your home but do not think it necessary to move the crucifix.
Tips that I was given were...If needed give a fresh paint in neutral colours, clear personal stuff away, even if just for the viewings, for eg, un clutter the bathroom add matching towels, clear away any personal photos.
I was told that the reason you are taking away all your personal stuff is so that the buyer can visualise themselves living in your home and this is a crucial part of a successful sale. Also was told that it helps if the house is well aired and has a pleasant smell, for eg, have flowers in the living room or kitchen, and the smell of coffee in the kitchen is also a winner..
Lastly get the opinion of two not just one agent as you will find that every estate agent has a different approach and usually a different valuation.