How do thorns of rose plant help to get sunlight?
The thorns of the rose plant does not help it to get sunlight but it defends it
A rose is a plant with sharp thorns on the stems. If you find "a rose among the thorns," you find a soft flower among the sharp thorns. The term can be used to mean anything nice found among not-so-nice things. You might say that someone is "a rose among thorns" if everyone around them is either unpleasant or incompetent.