AS commonly understood, opportunity signifies a combination of favorable conditions resulting in a suitable occasion. It implies the existence and activity of a power capable of controlling and producing a situation deemed favorable. It suggests a phase of fatalism expressed in the lines by Ingalls:
Master of human destinies am I ... soon
or late,
I knock unbidden once at every gate.
This is a belief in more than one power, or in a power which arbitrarily grants or withholds good.