The tiger without the forest (to protect it) is easily killed and so is the forest without tigers in it (to overawe people) easily cut down. The tiger therefore protects the forest and the forest the tiger.
निर्वनो वध्यते व्याघ्रो निर्व्याघ्रं छिद्यते वनम्। तस्माद् व्याघ्रो वनं रक्षेद् वनं व्याघ्रं च पालयेत्॥