The stingray's coloring allows it to safely camouflage itself in the sand on the ocean floor. Are you keeping yourself low and out of sight? When stingray shows up it could indicate a time to keep to yourself and stay out of the lime light.
Although not usually an aggressive animal, the stingray's barb is poisonous and can cause harm. Do you have the habit of using combative language when you are felling threatened? As a totem stingray teaches us to be careful with our words (barbs) and to refrain from using razor-tongue remarks.