How do I express the meaning of a sentence?

It was blessed by a ritual, says M’Abdallah. ”

Implies that the ritual was the reason it was blessed. When you use words by, the reader’s mind is kept purely on the ritual act itself and vice versa. there is no implicit additional idea associated with the phrase.

Is this Holy Ghost? As

always, there is an additional idea implicit when you use the word through. You are stating that the ritual was the agent of the blessing and not necessarily that the ritual was the total means of the blessing.

If the ritual was performed to a holy figure then by stating that, it was blessed through a ritual, you are leaving space for the reader to imagine that the reason for the blessing was perhaps more than the ritual itself. The ritual was the means through which the blessing took place but not necessarily the sum total reason for the blessing.

When you use or say by however you are attributing the blessing more squarely as being a direct result of the

ritual itself.