D’veikus (דביקות) means to be very attached to something or to someone. For example one of the 613 mitzvos is to have d’veikus to Hashem. In this week’s parsha (Ma’asei), the Torah tells us that a Jew should have d’veikus to …
Answer: To have d’veikus to one’s portion of Eretz Yisroel: כִּי־אִישׁ בְּנַחֲלָתֹו יִדְבְּקוּ [Bamidbar 36:9]